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30 results about "Wall stud" patented technology

A wall stud is a vertical framing member in a building's wall of smaller cross section than a post. They are a fundamental element in frame building.

Door casing reinforcing system

The door casing reinforcing system includes a first reinforcing bracket and a second reinforcing bracket. The door casing reinforcing system may reinforce a door casing of a door to prevent an intrusive force from breaking the door casing in order to defeat a door lock that holds the door closed and / or bowing the door casing to allow the keeper to disengage. The first reinforcing bracket may couple to a wall stud in a wall that may be adjacent to the door. The second reinforcing bracket may couple to the door casing and to the front of the wall stud. The first reinforcing bracket may engage the second reinforcing bracket such that the intrusive force attempting to push the door into a room may be conveyed to the second reinforcing bracket and may be opposed by the wall stud via the first reinforcing bracket.
Owner:PLEMMONS CLAY

Ventilated Wall System

A ventilated wall system includes a wall frame positioned along a floor and having a bottom plate and a wall stud; a ventilation spacer having first face with at least one groove therein; a span of drywall; and a baseboard. The spacer's first face and at least one of the bottom plate and the wall stud define a first channel extending from one spacer side to the other, and the spacer's bottom and the floor define, at least in part, a second channel extending from the spacer's sides. The bottom can include a second face having at least one slot formed therein, which can form additional channels to enhance the flow of a gas or liquid from one spacer side to another.
Owner:THOMPSON EDWARD ALAN

Vacuum hose port mounting brackets and related methods

PendingUS20260026664A1Suction hosesWall studClassical mechanics
A mounting system for a central vacuum system hose valve box operable for secure attachment to a wall stud or frame member. The system includes flanges at the front of the valve box for attachment of either the left or right side of the front of the box to a stud or frame member. An additional rear bracket is provided for attachment of the rear of the valve box to the same wall stud or frame member. These dual attachments provide a firm and secure mount of the valve box to the wall stud, thus avoiding damage or disconnection encountered by other flimsy mounts. This configuration ensures a robust and reliable connection, maintaining the operational integrity of the vacuum hose system while providing ease of installation and maintenance.
Owner:HIDE-A-HOSE INC

Landscape dry-hanging wallboard structure

The utility model relates to the technical field of landscape wallboards, and discloses a landscape dry-hanging wallboard structure which comprises a wall body, a dry-hanging component and a wallboard, the dry-hanging component comprises an edge component and a supporting component, the edge component is composed of a first wall nail, a clamping frame and a clamping groove, and the supporting component is composed of a second wall nail, a cross-shaped supporting frame and a rubber pad; the four corners of the wall plate are all clamped on the edge components, and the multiple supporting components are arranged on the back face of the wall plate; a gap is formed between the wall plates, a glue box is embedded in the gap, and the glue box is filled with a joint mixture. The surface of the wall body is coated with a waterproof coating. The dry hanging component is additionally arranged on the wall body and used for fixing the wallboard, the fixing performance of the corners of the wallboard is enhanced through the edge component in the dry hanging component, meanwhile, the back face of the wallboard is strengthened and fixed through the supporting component, and the stability of the wallboard is effectively enhanced.
Owner:SHANGHAI LUOLANG LANDSCAPE ENG DESIGN CO LTD

Exterior wall scaffold lifting rail mechanism, lifting method and clamping wall nail positioning method

This invention discloses an external wall scaffolding lifting guide rail mechanism, lifting method, and wall nail positioning method, belonging to the field of building construction technology. The external wall scaffolding lifting guide rail mechanism includes a guide rail, a positioning support, and a wall nail locator, and also includes wall nails horizontally fixed to the outer perimeter of a concrete floor slab. The guide rail is fixed to the inner column of the external wall scaffolding and is divided into a lower positioning fixing section and an upper positioning guide section. The guide rail has an internal space that is vertically connected, and a slot is provided on the front side facing the wall for the outer section of the wall nail to extend into the internal space and slide up and down. The positioning support is located in the internal space of the positioning fixing section of the guide rail and can be combined with the wall nail to temporarily fix the external wall scaffolding at a certain height. The wall nail locator is located on the upper part of the positioning guide section and is used for positioning during the pouring of the upper floor slab and for leaving a threaded hole for the inner section of the wall nail to screw into.
Owner:HUNAN ANHUA FORMWORK & SCAFFOLDING ENG CO LTD

A wall stud made of hardboard

PendingUS20250290317A1StrutsWallsWall studMechanical engineering
A wall stud is provided. The wall stud comprises an elongated body and at least one flange extending from said body thereby providing a wall stud width (W) being greater than the thickness (T) of the elongated body. The body and the at least one flange are made of hardboard.
Owner:UMAZING AB

A helium leak detection chamber protective pipeline assembly with strong sealing and shielding performance

The application discloses a helium leak detection box chamber protective pipeline assembly with strong sealing and shielding performance and relates to the technical field of helium leak detection box chamber pipeline assemblies. The helium leak detection box chamber protective pipeline assembly with strong sealing and shielding performance comprises a mounting seat, a mounting hole is formed in the surface of the mounting seat, a limiting groove is formed in the surface of the mounting seat, and a pressing assembly is arranged in the limiting groove. The helium leak detection box chamber protective pipeline assembly with strong sealing and shielding performance is used in the following manner: the shielding pipe is penetrated through the wall between the shielding chamber and the shielding chamber operating room, then the mounting seat is fixed to the wall surfaces of the operating room and the shielding chamber through wall nails and mounting holes, so that the fast mounting effect is achieved, the threaded rod is rotated to rotate into the threaded hole of the positioning nut, at the same time, the sliding block also moves along the outside of the threaded rod, and the sliding block, the connecting block and the pressing ring clamp and fix the line pipe as the threaded rod rotates in.
Owner:HUBEI WALSHENG INTELLIGENT EQUIP CO LTD

Fabricated thermal insulation wallboard for engineering

The utility model relates to the technical field of building insulation boards, in particular to an assembly type insulation wallboard for engineering. Comprising a first template and a second template, wherein clamping grooves are formed in the edges of the first template; clamping strips matched with the clamping grooves are arranged on the edges of the second formwork, and the second formwork and the first formwork are mutually spliced to form a heat preservation layer; the wall nail assemblies are mounted at the end corners of the first formwork and the second formwork; through splicing of the first formwork and the second formwork, the stability after overall splicing is improved, the wall nail assemblies are adopted for fixing, the overall fixing strength is greatly improved, and the construction difficulty is simplified.
Owner:GUANGZHOU HENGLONG CONSTR ENG CO LTD

Hook

ActiveCN223648294UStaplesNailsWall studMechanical engineering
The utility model discloses a hook which comprises a hook body, the hook body comprises a hook part, the hook part is provided with at least three fixing holes, the fixing holes obliquely penetrate through the hook part, and the axes of the fixing holes are arranged in a staggered mode, so that after a wall nail penetrates through the fixing holes, the wall nail is obliquely inserted into a gypsum wall. Compared with the prior art, the wall nail has the advantages that the at least three fixing holes are formed in a staggered mode, so that the wall nail is obliquely driven into the wall surface, the wall nail and the perpendicular wall surface can form an inverted hook, and the problem that the wall nail is loosened when being perpendicular to the wall surface after being loaded is solved; as the nail penetrates through the hook part, the strength of the hook part is improved, and the bearing capacity during hanging is improved.
Owner:ANBO HOME GOODS SHENZHEN

Concealed wall nail capable of replacing wall surface punching installation screw

ActiveCN223203432UStaplesNailsPunchingWall stud
The utility model is applicable to the technical field of wall nails, and provides a concealed wall nail capable of replacing a wall surface punching installation screw, which comprises a main body base, thin steel nails are distributed at one end of the main body base at equal intervals, and through the arrangement of the thin steel nails, the thin steel nails and the main body base are of an integrated structure. By means of the installation mode, the wall surface is not damaged, a professional does not need to conduct door-to-door installation, a user can conduct installation by himself / herself, and the purpose of saving cost is achieved. The nut is arranged on the main body base, the nut and the main body base are synchronously mounted and fixed with the wall body, the hook and the main body base can be conveniently connected through a threaded structure between the nut and the bolt, and meanwhile, in the using process, the stress surface when a heavy object is hung is increased through the effect of the mounting plate, and the falling-off condition is avoided.
Owner:TAIAN AOLAN HOME FURNISHING CO LTD

Corner of aluminum alloy door and window

The utility model relates to the technical field of door and window corners, in particular to an aluminum alloy door and window corner which comprises two sealing grooves and an included angle adjusting mechanism, the included angle adjusting mechanism comprises a rotating assembly, two connecting blocks and two connecting assemblies, and each connecting assembly comprises two connecting ribs, a connecting clamp, two side clamping pieces and a fixing piece. According to needs, the included angle between the two connecting blocks is adjusted through the rotating assembly, the two connecting clamps and the four connecting ribs are inserted into the two connecting blocks correspondingly, under cooperation of the four side clamping pieces, the two connecting clamps and the four connecting ribs are fixed through the two fixing pieces correspondingly, and therefore different included angles can be adapted; and the two connecting blocks and the wall face are tightly nailed through wall nails to be fixed, and the problems that the corner of an existing aluminum alloy door and window is a fixed right-angle corner, the included angle at the corner cannot be adjusted, and the requirement for various included angle sizes of the corner in different scenes cannot be met are solved.
Owner:CHONGQING RONGJIA DECORATION ENGINEERING CO LTD

Door pocket assembly

ActiveCN223724421UWindow/door framesWall studBack door
The utility model provides a door pocket assembly, which relates to the technical field of door pocket installation, is installed on a wall body, and comprises a door pocket and a door pocket plate, the door pocket plate is fixed with a wall body through a plurality of wall nails; the door pocket plate is sleeved with the door pocket, and the door pocket is connected with the door pocket plate in an inserted mode through the inserting block and the inserting groove. After the door pocket is connected with the door pocket plate in an inserted mode, the inserting groove in the door pocket is divided into two nail hiding grooves which are used for hiding exposed nail caps of the wall nails. The two nail hiding grooves are both filled with polystyrene foam and used for fixing the door pocket and the door pocket plate, accurate positioning and installation stability between the door pocket and the door pocket plate are further achieved through the inserting blocks and the inserting grooves, the two nail hiding grooves formed after inserting can hide nail caps of multiple nails, the overall attractiveness is improved, and the door pocket and the door pocket plate are more attractive. The nail hiding groove is filled with polystyrene foam, the gluing effect is enhanced, and efficient installation is achieved.
Owner:ANHUI KOJO NEW MATERIAL TECH CO LTD

Screw structure for leveling keel

ActiveCN223189970UCovering/liningsKeelWall stud
The utility model provides a screw structure used for keel leveling, which comprises a wall screw used for being fixed with a wall surface, the front end of the wall screw is provided with an external thread section, and the rear end of the external thread section is provided with a limiting part protruding in the radial direction; the threaded sleeve is in threaded fit with the external threaded section and has a certain axial length, the threaded sleeve is provided with an internal threaded hole penetrating along the axis of the threaded sleeve, the periphery of the threaded sleeve is provided with a polygonal second stress part enabling the threaded sleeve to rotate, and the axial backward position of the threaded sleeve on the external threaded section is limited by a limiting part; the bolt is in threaded fit with the inner threaded hole from the front end, the front end of the bolt is provided with a T-shaped head part, and the T-shaped head part is provided with a third stress part used for enabling the T-shaped head part to rotate. Positioning of keel flatness can be completed through the height of the front end face of the threaded sleeve while wall nails are locked, later repeated adjustment is omitted, and time and labor are saved during installation; the front end face of the wall nail is located in the threaded sleeve and cannot protrude forwards to penetrate through the keel, and therefore sliding of the installation piece in the installation groove in the front side of the keel cannot be blocked.
Owner:HEYUAN MEIJIAMEI TECH CO LTD

Wall stud acoustic performance

ActiveUS12421717B2WallsSound proofingWall studEngineering
A framing assembly is disclosed including an acoustic framing arrangement and a plurality of tracks. The acoustic framing arrangement interconnects a top track with a bottom track. The acoustic framing arrangement includes a pair of studs positioned in back-to-back configuration and mechanically joined using a connector. The connector includes a vertical portion that extends between the pair of studs and a base portion that connects to the tracks. When assembled, the acoustic framing arrangement creates space between the pair of studs and positions the studs in an offset configuration to improve wall stud acoustic performance.
Owner:HYPERFRAME INC

Moveable Mounting Bracket Assembly

A Moveable Mounting Bracket Assembly (MMBA) comprising a single or double box MMBA includes a Direct Stud Mechanism (DSM) attached to a wall stud by screws. The DSM includes a wall stud flange, a Movable Mounting Plate (MMP) flange, two MMP rails, and an adjusting screw flange. The MMP slides in and out on the MMP rails and is held in position by the depth adjusting screw which threadedly engages the MMP. A Handy Box Extension (HBE) is attached to the front of the MMP and a junction box is attached to the back of the MMP.
Owner:PHILLIPS BRUCE G

Precursors for impaling clips and impaling clips formed therefrom for mounting acoustic panels onto structural components

A precursor to form an impaling clip, and an impaling clip formed therefrom. The impaling clip is configured for mounting an acoustic panel on a structural component, e.g., a wall stud, of a building. The impaling clip includes a base member from which a pair of prongs project upward perpendicular to the plane of the base member. The base member includes at least one hole for receipt of a fastener, e.g., a screw, to fixedly secure the base member of the clip to the structural component. Each prong includes a leg portion terminating in pointed head and outwardly projecting under-cut barbs configured to pierce through the back surface of the panel to lock the prong within the panel so that it is resistant to removal.
Owner:HUBER KENNETH

Support structure

PCT designated stageWO2025202236A1StrutsGirdersCarbon footprintWall stud
The present disclosure provides a hemp-based wall stud comprising a composite material formed from hemp fibers and hemp shives, and a binder material impregnating the composite material. The wall stud has a C-shaped profile and a density sufficient for structural use in wall construction. The hemp-based wall stud offers an environmentally sustainable alternative to conventional steel studs while maintaining structural integrity. A method of manufacturing the hemp-based wall stud involves combining hemp fibers and shives, impregnating with a binder, pressing into a board, and shaping into a C-profile. The resulting wall stud can be integrated into wall assembly systems, providing a bio-based solution for construction that reduces carbon footprint and utilizes renewable materials.
Owner:BIOTWIN LTD

Concrete insulation board body structure convenient to install

The utility model discloses a concrete insulation board body structure convenient to install, and relates to the technical field of concrete insulation board bodies, the concrete insulation board body structure comprises a putty layer and an installation assembly, the rear side of the putty layer is connected with an insulation layer, and the rear side of the insulation layer is connected with a foam concrete layer. The mounting assembly which is convenient to mount and good in mounting firmness is arranged in the heat preservation layer and the foam concrete layer, the mounting assembly comprises a mounting hole, a reinforcing pipe, a fixing wall nail and a tensioning steel wire rope, the reinforcing pipe is arranged in the mounting hole, the fixing wall nail is mounted in the reinforcing pipe, and the tensioning steel wire rope is arranged in the fixing wall nail. The oblique angle of the reinforcing pipe is connected with a tensioning steel wire rope, and a surface layer plate is installed on the front side of the putty layer. According to the concrete heat preservation plate body structure convenient to install, the heat preservation layer and the foam concrete layer are directly fixed to the building concrete face through the four sets of fixing wall nails penetrating through the reinforcing pipes, installation is easy and convenient, the whole structure is firm, and seamless installation of the plate body can be achieved.
Owner:TONGLIAO WEIDE NEW MATERIAL TECH CO LTD

Basement moisture-proof electroosmosis anode wallboard

The utility model discloses a basement moistureproof electroosmosis anode wallboard, which relates to the technical field of electroosmosis, and comprises a main board, the main board is installed on a wall body through wall nails, the rear surface of the main board is provided with a wire slot, an anode wire is laid in the wire slot and is in contact with the wall body, the main board is provided with a mounting slot, and the mounting slot is provided with a mounting hole. According to the utility model, the anode wire is accommodated through the wire slot arranged on the main board, so that the wire slot does not need to be arranged on a wall body, the construction difficulty is reduced, the wall body is protected, and meanwhile, the wall body which is originally affected with damp can be covered, and the decoration effect is realized.
Owner:SHENYANG GUOJIAN XINTEC TECH DEV

Article wall hanging plate

The utility model discloses an article hanging wall plate, which can be used for hanging articles at different distances and is more practical, and a plurality of parts can be inserted more firmly. An article wall hanging plate comprises a first connecting plate and a first hanging plate. The first connecting plate is fixed to a wall, and the first connecting plate and the first hanging plate are alternately spliced in the vertical direction in an inserted mode. The first connecting plate comprises a first plate body, the wall nail penetrates through the top of the first plate body to be fixed to a wall body, a first blocking strip with a T-shaped section protrudes out of the outer surface of the bottom of the first plate body, and a first clamping groove with an upward opening and a second clamping groove with a downward opening are defined by the first blocking strip and the first plate body; the first hanging plate comprises a second plate body, the edges of the two ends of the second plate body extend backwards and are bent to form L-shaped first inserting plates, and the bottom edge of the second plate body extends downwards to form a second blocking strip. The first inserting plate is used for being inserted into the first clamping groove or the second clamping groove to be fixed, and a third clamping groove is formed between the second blocking strip and the first blocking strip.
Owner:FSILON BUILDING MATERIAL TECH CO LTD

Precursors for stabilized impaling clips, stabilized impaling clips formed therefrom, and method of mounting an acoustic panel onto a structural component

ActiveUS12595652B2WallsSound proofingWall studPhysics
A precursor to form an impaling clip, and an impaling clip formed therefrom. The impaling clip is configured for mounting an acoustic panel on a structural component, e.g., a wall stud, of a building. The impaling clip includes a base member from which a pair of prongs project upward perpendicular to the plane of the base member. The base member includes at least one hole for receipt of a fastener, e.g., a screw, to fixedly secure the base member of the clip to the structural component. Each prong includes a leg portion terminating in pointed head and outwardly projecting under-cut barbs configured to pierce through the back surface of the panel to lock the prong within the panel so that it is resistant to removal.
Owner:HUBER KENNETH

Open back box and adjustable mounting bracket

PendingUS20260135363A1Electrical apparatusWall studElectrical connection
A method of installing an electrical assembly to a wall stud includes providing an electrical assembly with a junction box, a mounting bracket, and an electrical device secured to the junction box. The mounting bracket is selectively secured to extend along either a first side or a second side of the wall stud. Without removing the electrical device from the junction box, the junction box is selectively supported on the mounting bracket with the electrical device slidingly engaged with either side of the junction box. The depth of the junction box relative to the mounting bracket is adjustable. The mounting bracket includes an anchor wall that engages the opposite side of the wall stud and an adjustment wall for sliding engagement and depth adjustment. The system includes an open back for electrical connection that can be closed with a back cover.
Owner:ERICO INTERNATIONAL CORP

Kicking type garbage can

ActiveCN223591554URefuse receptaclesWall studMechanical engineering
The utility model discloses a kicking type garbage can which cancels a mode of opening a can cover by two hands and adopts a kicking opening mode. An opening is formed in the front wall of the can body, inner fixing rails are installed on the inner surfaces of the left side wall and the right side wall of the can body respectively, first installation holes are formed in the left side wall and the right side wall of the can body respectively, and compression springs are installed on the inner surface of the rear wall of the can body. The wall nails respectively penetrate through the first mounting holes and are fixed in the wall body; the outer surface of the bottom of the outer door plate sinks inwards to form a first pit, and the four edges of the outer door plate extend backwards to be bent, welded and fixed to be in a box shape. The inner door plate is also bent into a box shape; the inner door plate and the outer door plate are spliced, inserted, welded and fixed; a bearing box is connected to the bottom of the inner door plate, an opening of the bearing box faces upwards, a garbage can is placed in the bearing box, and outer moving rails are installed on the outer surfaces of the two side walls of the bearing box correspondingly. The center lines of the first pit, the outer moving track and the compression spring are arranged at the same height, the double-layer door plate covers the front wall opening of the can body, and the bearing box extrudes the compression spring.
Owner:JIAXING SUNSTONE METAL PROD CO LTD

An assembled wallboard structure which is easy to install

ActiveCN224478661UWall studIndustrial engineering
This utility model discloses an easy-to-install modular wall panel structure, including a wall panel base plate and a modular connecting strip disposed at the right end of the wall panel base plate. The modular connecting strip protrudes to the right at the right end of the wall panel base plate, and a modular connecting slot is recessed to the right at the left end of the wall panel base plate. By adding a vertically placed reinforcement device at the bottom of the wall panel base plate, the device can effectively optimize the wall panel installation process and stability. During construction, the metal support block is pre-fixed to the wall surface with extended wall nails using a pneumatic nail gun, breaking the cumbersome process of traditional adhesive curing and significantly shortening the construction cycle. When installing the wall panel, it is only necessary to align the insert fixing slot with the metal fixing insert and press it down to connect. The operation is simple, reducing the technical threshold and cost of manual labor. In terms of stability, the device uses multiple insertions and extended wall nails for fastening, evenly distributing the force on the wall panel and avoiding the risk of falling off due to uneven wall surface, ensuring a stable and reliable installation.

Outer wall scaffold lifting guide rail mechanism, lifting method and clamping wall nail positioning method

The invention discloses an outer wall scaffold lifting guide rail mechanism, a lifting method and a clamping wall nail positioning method, and belongs to the technical field of house building construction. The outer wall scaffold lifting guide rail mechanism comprises a guide rail, a clamping support and a wall nail positioner, and further comprises clamping wall nails horizontally fixed to the periphery of a concrete floor plate, the guide rail is fixed to an inner column of an outer wall scaffold and divided into a lower clamping fixing section and an upper positioning guide section, the guide rail is provided with an inner space which is communicated up and down, and the clamping wall nails are arranged in the inner space. A first notch allowing the outer section of the clamping wall nail to extend into the inner space and capable of sliding up and down is formed in the front side, facing the wall face, of the guide rail, the clamping support is arranged in the inner space of the clamping fixing section of the guide rail and can be combined with the clamping wall nail to temporarily fix the outer wall scaffold at a certain height, and the wall nail positioner is arranged on the upper portion of the positioning guiding section. And a threaded hole allowing the inner section of the clamping wall nail to be screwed in is reserved for positioning in the pouring process of the previous floor plate.
Owner:HUNAN ANHUA FORMWORK & SCAFFOLDING ENG CO LTD

Prestressed nail structure for masonry reinforcement

The present invention discloses a prestressed nail structure for masonry reinforcement, which includes a right-handed wall nail and a left-handed wall nail. They are both formed into a right-angled shape by a first section and a second section. The free ends of the first sections of the right-handed wall nail and the left-handed wall nail are respectively provided with a right-handed external thread and a left-handed external thread. The two ends of the hole of a fastening sleeve are respectively provided with a right-handed internal thread adapted to the right-handed external thread and a left-handed internal thread adapted to the left-handed external thread. Nuts are respectively threadedly connected to the middle parts of the second sections of the right-handed wall nail and the left-handed wall nail. The free ends of the second sections of the right-handed wall nail and the left-handed wall nail gradually increase in diameter to form a tapered head. Washers and expansion sleeves are respectively sleeved on the right-handed wall nail and the left-handed wall nail between the nuts and the tapered heads. A strip-shaped groove is provided along the length direction at the end of the expansion sleeve facing the tapered head, and the strip-shaped groove extends to the free end of the expansion sleeve. The inner diameter of the expansion sleeve is consistent with the outer diameter of the middle section of the tapered head. The right-handed wall nail section and the left-handed wall nail section with the expansion sleeves are respectively located in the holes drilled in adjacent masonries, and the fastening sleeve is located on the wall surface; this structure can reliably reinforce the masonry.
Owner:GUIZHOU INST OF TECH

Fabricated curtain wall connecting piece for building

ActiveCN224063739Ufixed plateImprove stabilityWallsWall studArchitectural engineering
The utility model discloses an assembly type curtain wall connecting piece for building, which relates to the technical field of constructional engineering, and comprises a main body, one side of the main body is fixedly connected with a wall sticking plate, the middle part of one side of the wall sticking plate is fixedly connected with a non-slip mat, and the upper side and the lower side of the wall sticking plate are both fixedly connected with two first vertical plates. According to the utility model, through the non-slip mat with a plurality of circular rubber pads arranged on one side, when the device is used for fixing a curtain wall, extra friction force is provided, a gap between a wall nail and the curtain wall can be filled, the curtain wall can be fixed more positively according to the vertical level of the measuring scale during fixing, and through the grabbing plate corresponding to the position of the reverse toothed plate, the measuring scale can be used for measuring the position of the reverse toothed plate. According to the equipment, when a plurality of connecting pieces are fixed to a curtain wall, the transverse rod can be inserted, so that the fixing stability of the curtain wall is enhanced, it is guaranteed that the connecting pieces are fixed and not inclined, and the reverse toothed plate and the grabbing plate provide a buffer space for the curtain wall, so that fixing is firmer.
Owner:JIANGHAI POLYTECHNIC COLLEGE