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117results about "Wheeled lavatories" patented technology

Urinal for women

ActiveEP3853420B1UrinalsSpecial building
The invention relates to a urinal (1) comprising a bowl (3) having an elongated shape along a horizontal axis (X-X´), the inner walls (2) and the edge (4) of said bowl (3) defining an opening (5) which faces upwards, and said opening (5) being closed by a concave water-repellent mesh (13), characterised in that the edge (4) has a concave shape on both sides of the bowl (3). The invention also relates to a cubicle comprising a urinal (1).
Owner:MADAMEPEE

Movable microbial degradation vacuum suction type toilet

The utility model discloses a movable microbial degradation vacuum suction type toilet, which is arranged on a movable platform and comprises a toilet stool body, a pumping assembly, a flushing assembly and a microbial degradation part, the toilet stool body, the extraction assembly, the flushing assembly and the microbial degradation part are arranged on the movable platform, so that the movable microbial degradation vacuum suction type toilet can be conveniently and quickly transferred, placed, fixed or detached by means of the movable platform, and the stirring area is preset by means of the microbial degradation part; equipment support is provided for microbiological degradation of the dirt when the dirt is retained in the stirring area, the peculiar smell generated by the retained materials is reduced, and the problem that a large amount of peculiar smell is emitted due to the fact that the dirt is not treated at all in the equipment sealing performance or poor maintenance or in the clearing and transporting process is solved.
Owner:FUAN AOLAITE ELECTRICAL MACHINERY +1

Circulation-type toilet unit

Provided is a recirculating toilet unit (1) that includes: a recirculation toilet (2) which includes purification equipment (6) and is configured to recirculate flushing water through the purification equipment (6); a power generation unit (3) which includes power generators (7, 8) formed of a wind turbine generator (7) and a photovoltaic generator (8) and is configured to supply a load of the purification equipment (6) with power from the power generators (7, 8) for recirculation and purification of the flushing water. The recirculating toilet unit (1) includes a structure (4) which carries the recirculation toilet (2) and the power generation unit (3), the structure (4) being transportable. The power generation unit (3) may include a control device configured to apply a control to supply the load with power generated by the power generators (7, 8).
Owner:NTN CORP

Trailer type mobile toilet

A trailer type mobile sanitary apparatus includes a housing that forms an interior space having a flushable toilet and a wash basin. The trailer type mobile sanitary apparatus further includes a wash basin drainage system and a septic tank that is separated from the wash basin drainage system and includes a decomposer configured to separate liquids from solids for a separate discharge. The housing securely positioned on a tray type trailer with a septic tank being formed in the tray type trailer. The tray type trailer further includes a technical room with an electric system and a water supply system.
Owner:LEE TIGER

Detachable mobile toilet based on modular design

The invention discloses a detachable mobile toilet based on modular design, relates to the technical field of mobile toilets, and solves the technical problems that an existing mobile toilet depends on welding in installation, the transportation cost is high, accessories have no interchangeability and are easy to rust. The mobile toilet comprises a frame formed by riveting / bolting vertical beams and cross beams, the top of the frame is provided with a clamping groove structure for installing a water purifying tank, a closed space with a bathroom device and a door is formed in the middle of the frame, and the bottom of the frame is provided with a cavity structure for installing a sewage tank in a drawing mode; the volume ratio of the clean water tank to the sewage tank is 1: (1.2-1.8), the clean water tank and the sewage tank are modularized steel structure sealed water tanks, the top of the clean water tank is provided with a photovoltaic module and is connected with an energy storage battery, and the sewage tank is provided with a U-shaped pipe and an inclined upward excrement pumping opening; a bottom cavity between the frame and the sewage tank can be provided with wires and filled with foaming materials. The whole process is free of welding installation, parts are modularized and interchangeable, transportation is convenient and fast, corrosion resistance is achieved, heat insulation and noise reduction are achieved, and the device is suitable for water-resource-deficient areas, ocean transportation and other scenes.
Owner:ANHUI BOYUE CABIN INTELLIGENT ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

A water heating system for remote site and offshore welfare units and other low voltage applications

A welfare unit 1 such as a toilet or shower for use offshore e.g. oil rigs, turbines, or as a temporary shelter, has a unitary body 2 defining an enclosure with an access door 7 and a water heating sy
Owner:GRIFFIN SPECIAL PROJECTS LTD

Mobile public toilet with anti-freezing and heat preservation function in extremely cold area

The utility model discloses an extremely cold region anti -freezing heat preservation removes public lavatory belongs to public lavatory field, including public lavatory main part, the inside of public lavatory main part is provided with heating assembly, the bottom of public lavatory main part is provided with removal subassembly, heating assembly includes heating case, heating case fixedly connected in the inside of public lavatory main part, the top of heating case is fixedly connected with heating fan, heating fan's output end extends to the inside of heating case, one side fixedly connected with heater of heating case inner wall, heater's output end is connected with the one end of corresponding snake type heating pipe. The extremely cold region anti -freezing heat preservation removes public lavatory, through setting heating assembly, this public lavatory can heat the inside of public lavatory main part when using, avoid the user in the process of using, because the inside of public lavatory temperature is too low and appears the situation of being not suitable, and the inside of public lavatory main part is heated, can avoid the freezing of the flushing system, thereby influence the normal cleaning of public lavatory main part.
Owner:ZHENGZHOU HENGJIE ENVIRONMENTAL PROTECTION EQUIP CO LTD

Environment-friendly public toilet with rainwater collecting, recycling and flushing device

The utility model discloses an environment-friendly public toilet with a rainwater collecting, recycling and flushing device, which belongs to the field of environment-friendly public toiles.The environment-friendly public toilet comprises a public toilet body, a storage box is fixedly connected to one side of the movable environment-friendly public toilet body, a collecting hopper is fixedly connected to the upper portion of one side of the movable environment-friendly public toilet body, and the collecting hopper is communicated with the storage box through a conveying pipe. The storage box is fixedly connected with the movable environment-friendly public toilet body through an output pipe, a filter frame is arranged in an inner cavity of the storage box, butt joint blocks are fixedly connected to the two sides of the filter frame, and clamping blocks are fixedly connected to one sides of the butt joint blocks; through cooperative use of the devices, the maintenance convenience is improved, the cleanliness and the service life of the filter frame are effectively guaranteed, and a solid foundation is laid for long-term and stable operation of the public toilet.
Owner:ZHENGZHOU HENGJIE ENVIRONMENTAL PROTECTION EQUIP CO LTD

Mobile toilet with zero discharge of urine

A urinal is fixedly connected to the bottom in a toilet room, a urinal groove is formed in the urinal, a urinal hole is formed in the urinal groove, the lower portion of the urinal hole is connected with a sewage pool through a pipeline, a water outlet of the sewage pool is fixedly connected with a water pump, the water pump is connected with an anaerobic microorganism pool through a pipeline, and the anaerobic microorganism pool is connected with a water inlet of the anaerobic microorganism pool through a pipeline. The anaerobic microorganism tank is connected with the aeration system through a pipeline, the aeration system is connected with the aerobic microorganism tank through a pipeline, a water outlet of the aerobic microorganism tank is fixedly connected with the defoaming pump, the defoaming pump can eliminate foams generated by the air floatation effect of bubbles in the aeration system, and the defoaming pump is connected with the ultrafiltration membrane filtration system through a pipeline. The ultrafiltration membrane filtration system is connected with a disinfection system through a pipeline, the disinfection system 14 is connected with a storage bin through a pipeline, the storage bin is connected with an automatic flushing system through a pipeline, and the automatic flushing system is connected with a urinal through a pipeline.
Owner:JIANGSU SHENGQUAN ENVIRONMENTAL PROTECTION TECH DEV CO LTD

Drainage-free mobile toilet

ActiveCN224173437Uconsistent with behavioral habitsComply with toilet habitsLavatory sanitoryWheeled lavatoriesMechanical engineeringToilet
The utility model relates to the technical field of mobile toilets, in particular to a non-drainage type mobile toilet which comprises a toilet body and a defecation cavity formed in the front face of the toilet body, a toilet door is rotatably installed at the position of a cavity opening of the defecation cavity, a collecting cavity is formed in the back face of the toilet body, and the non-drainage type mobile toilet further comprises a collecting box detachably installed in the collecting cavity, the top of the squatting pan is designed to be open, the squatting pan is fixedly installed at the bottom of the defecation cavity, the top of the squatting pan penetrates through the bottom and is provided with a defecation cavity communicated with the collection cavity, automatic opening and closing are achieved, the squatting pan conforms to the defecation habit, and when a user naturally steps on the pedal, the sealing baffle is automatically opened; after defecation is finished, the feet leave the pedal, the baffle is automatically closed under the action of the spring, manual operation is not needed, human body behavior habits are met, when the baffle is closed, the defecation opening is completely covered, peculiar smell diffusion is effectively blocked, a pure mechanical gear and rack transmission structure is adopted, electric power or a sensor is not needed, the fault rate is reduced, and the device is suitable for the environment without power supply.
Owner:GUANGZHOU CLEEN ECO-TECH CO LTD

Circulation-type toilet unit

Provided is a recirculating toilet unit (1) that includes: a recirculation toilet (2) which includes purification equipment (6) and is configured to recirculate flushing water through the purification equipment (6); a power generation unit (3) which includes power generators (7, 8) formed of a wind turbine generator (7) and a photovoltaic generator (8) and is configured to supply a load of the purification equipment (6) with power from the power generators (7, 8) for recirculation and purification of the flushing water. The recirculating toilet unit (1) includes a structure (4) which carries the recirculation toilet (2) and the power generation unit (3), the structure (4) being transportable. The power generation unit (3) may include a control device configured to apply a control to supply the load with power generated by the power generators (7, 8).
Owner:NTN CORP

Sanitary cubicle, in particular a toilet cubicle

The invention relates to a sanitary cubicle comprising at least one floor part, at least one roof part and a plurality of sidewall parts. At least one sanitary device and at least one tank for wastewater and / or faeces are also provided. At least one structural component of the sanitary cubicle is provided with antimicrobial properties. For this purpose, at least one surface region of the structural component, preferably the entire structural component or substantially the entire structural component, is made of a material containing at least one antimicrobial additive.
Owner:TOI TOI & DIXI GROUP GMBH

Mobile sanitary module

Mobile sanitary module (1), including • a washbasin (2), • a mirrored cabinet and • a toilet (3), characterized in that the mobile sanitary module (1) is slidable on a guide to free up space for a shower (4), wherein the guide has at least one recess (18) with a protrusion by means of which the mobile sanitary module (1) can be rotated at a certain position on the guide.
Owner:BLUM FRANZ +1

Ventilation structure of mobile toilet

The ventilation structure of the mobile toilet comprises a toilet body, a mounting plate is fixedly connected to the position, close to the top face, in the toilet body, a mounting hole is formed in the top end of the mounting plate in a penetrating mode, and a ventilation box is inserted into the mounting hole. An adjusting pipe is fixedly connected to the position, located at the air inlet, of the bottom end of the air exchange box, nine adjusting fans are rotationally connected into the adjusting pipe, one ends of the nine adjusting fans penetrate through the inner surface of the adjusting pipe and are fixedly connected with driven rods, and an adjusting ring is rotationally arranged on the outer surface of the adjusting pipe. The control rod is rotated to drive the adjusting ring to rotate, so that the adjusting rod is driven to drive the driven rod to rotate, the nine adjusting fans rotate at the same time, the size of gaps among the adjusting fans is changed, the change of the ventilation efficiency is realized, the ventilation efficiency is improved, the operation is simple, and the adjustment is convenient.
Owner:HENAN FANGZE STEEL STRUCTURE ENGINEERING CO LTD

Integral moving type heat preservation toilet

The utility model discloses an integral movable type heat preservation toilet which comprises a house body which comprises a heat preservation enclosing wall, a heat preservation roof, a heat preservation house bottom and an internal space formed among the heat preservation enclosing wall, the heat preservation roof and the heat preservation house bottom. The floor structure is fixedly connected with the heat preservation enclosing wall and divides the internal space into a use area and a storage area located below the use area; the water utilization equipment is arranged in the use area of the internal space and generates waste water when being used; the waste water tank is arranged in the storage area and is communicated with the water consumption equipment so as to collect waste water from the water consumption equipment. The overall movable type heat preservation toilet has good heat preservation performance and mobility, and the heat preservation performance of waste water resources can be improved again.
Owner:SICHUAN LINGNENGHAO TECH CO LTD

Intelligent environment-friendly toilet suitable for temporary putting in city

The invention is suitable for the field of environment-friendly toilets, and provides an intelligent environment-friendly toilet suitable for temporary putting in cities, the intelligent environment-friendly toilet comprises a self-cleaning toilet frame, and the self-cleaning toilet frame comprises an excrement packaging frame and a self-cleaning frame; the excrement packaging frame comprises a rotating frame, a fixed-point knotting assembly and a plurality of supporting covers, packaging bags are placed in the supporting covers, and pressure sensors are arranged on the side walls of the supporting covers; the fixed-point knotting assembly comprises a first electric telescopic rod, a second electric telescopic rod and a packaging mechanical clamp. After excrement enters the packing bag, the packing bag is pulled to extrude a pressure sensor, and the pressure sensor triggers a first electric telescopic rod to longitudinally stretch out and draw back and a second electric telescopic rod to transversely stretch out and draw back, so that a packing mechanical clamp is adjusted to the position of the packing bag in a combined mode, and multi-point knotting is conducted along the packing bag; according to the utility model, peculiar smell and bacteria are prevented from flying out in the defecation process, the sanitary condition is improved, the consumption of an air draft system on electric energy is saved, the requirement on a temporary putting place is reduced, and the temporary putting adaptability of the toilet is improved.
Owner:ANHUI XUANAN ENVIRONMENTAL PROTECTION EQUIP MASCH CO LTD

Assembly type movable public toilet with automatic cleaning function

The utility model provides an automatic cleaning assembly type movable public toilet which comprises an installation base, a squatting pan is embedded in the right side of the upper portion of the installation base, an assembly shell is fixed to the upper portion of the installation base through bolts, a sealing top cover is fixed to the upper portion of the assembly shell through bolts, and a flushing water tank is fixed to the lower right portion of the inner side of the assembly shell through bolts. The intelligent toilet is characterized in that an infrared induction controller is installed on the right side in the assembly shell, a toilet door is connected to the left side in the assembly shell through a hinge, and a multifunctional storage rack is installed on the left lower portion of the rear end of the inner side of the assembly shell; the infrared induction controller comprises a protective shell, and an electric push rod is fixed to the right side of the interior of the protective shell through a bolt. The beneficial effects of the utility model are that through the arrangement of the protective housing, the electric push rod, the infrared sensor, the storage battery and the timer, the realization of automatic identification is facilitated, automatic flushing is realized after a user leaves, and the device is independently arranged and can be applied to various occasions.
Owner:TIANJIN RUILEX ENVIRONMENTAL PROTECTION ENG CO LTD

Pull type movable public toilet

The utility model discloses a pull type mobile public toilet, which relates to the technical field of public toilets, and comprises a base, the top end of the base is fixedly connected with a public toilet main body, the four corners of the bottom end of the base are fixedly connected with supporting legs, and the front part and the rear part of the right end of the base are fixedly connected with pull hooks. A lifting mechanism is fixedly connected to the top of the right end of the base, damping mechanisms are slidably connected to inner cavities of the front portion and the rear portion of the base, and the lifting mechanism comprises a fixing box. According to the pull type movable public toilet, when bumping occurs, the supporting plate moves downwards, the supporting rod is made to rotate, the supporting rod drives the second sliding block to slide on the outer wall of the guide rod, the first spring and the second spring are made to contract, meanwhile, the second sliding block drives the guide block to slide on the inner wall of the fixing plate, and the sliding block is driven to slide on the inner wall of the fixing plate. And meanwhile, the supporting plate drives the damper and the damping spring to contract, so that impact force generated during bumping is absorbed, damage to the public toilet body is reduced, and the damping effect is achieved.
Owner:南京恒辰环保科技有限公司

Waste processing apparatus and methods of making and use

Various aspects of this disclosure relate to toilet systems that include compositions to inhibit wastewater from freezing in a waste tank of a toilet. A first fluid treatment composition comprises a salt that is introduced into the waste tank. A second fluid treatment composition is a solid composite that also comprises a salt and that is introduced into a urinal in fluid communication with the waste tank.
Owner:JAMES JESSICA LYNN +1

Mounting device capable of being repeatedly moved and hoisted for mobile public toilet

The utility model discloses a mounting device capable of repeatedly moving and hoisting for a mobile public toilet, which relates to the technical field of public toilets and comprises a base, a supporting mechanism is mounted at the upper end of the base, door frames are symmetrically mounted on two sides of the front end of the supporting mechanism, and door bodies are movably hinged to the inner sides of the door frames. And side plates are symmetrically mounted on the left side and the right side of the supporting mechanism. Through cooperation of the vent hole, the connecting frame, the exhaust fan, the shielding cover, the filter box, the air inlet hole, the mounting plate, bolts, screw holes, the first filter plate, the second filter plate, the activated carbon plate, the butt joint block and the butt joint groove, air in the public toilet can be pumped out through the exhaust fan, and the air can be filtered and purified through the first filter plate, the second filter plate and the activated carbon filter plate; in this way, the purified air cannot pollute the environment when discharged into the environment, peculiar smells in the air can be adsorbed, the situation that the smell of a public toilet is heavy is avoided, and a comfortable environment is provided for people.
Owner:南京恒辰环保科技有限公司

Combined connecting piece of assembly type mobile toilet

The utility model discloses a combined connecting piece of an assembly type mobile toilet, which belongs to the technical field of assembly type mobile toilets, and comprises an L-shaped upright post, two ends of the L-shaped upright post are respectively provided with a mounting groove, the inner wall of the L-shaped upright post is provided with two groups of first mounting holes, and the inner walls of the two mounting grooves are respectively provided with a group of first threaded holes. According to the connecting structure, the mounting grooves are formed in the two ends of the L-shaped stand column, when the two side plates are connected, the ends of the side plates are inserted into the mounting grooves in the L-shaped stand column, and the L-shaped stand column and the side plates are connected through cooperation of the first bolts, the first mounting holes, the second mounting holes and the first threaded holes; and meanwhile, the L-shaped stand columns are used for completely blocking the ends of the side plates, on one hand, the connecting stability between the two side plates is guaranteed, and on the other hand, the water seepage phenomenon at the connecting position of the two side plates is effectively avoided.
Owner:FUJIAN KENING ENVIRONMENTAL PROTECTION EQUIP IND CO LTD

A portable toilet

A portable toilet comprises a clean water tank and a sewage tank, the clean water tank is detachably mounted above the sewage tank; characterized in that: the top front side of the sewage tank is provided with an extendable pull rod, and the bottom rear side of the sewage tank is provided with a moving wheel; the extendable pull rod can be pulled out forward to the front side of the sewage tank or be retracted backward to hide in the top surface of the sewage tank and form a carrying handle. The top of the sewage tank is provided with an extendable pull rod, which can be conveniently pulled out forward to the front side of the sewage tank, and then the moving wheel at the bottom rear side of the sewage tank can be used to pull and move the whole portable toilet or the sewage tank alone, which is convenient and labor-saving, and the sewage tank does not need to be lifted or stood sideways in advance, can be easily pulled and controlled like a pull rod box, and is not easy to cause sewage leakage.
Owner:FUJIAN DOOFAR OUTDOOR SPORTING GOODS CO LTD

Assembled mobile toilet

The utility model discloses an assembled mobile toilet, which structurally comprises a base, a rear plate, a door plate, a left plate, a right plate, a top cover and the like, and is mainly characterized in that the rear plate is detachably mounted on the rear side of the base, the left plate is detachably mounted on the left side of the base, the right plate is detachably mounted on the right side of the base, and a closestool component is detachably mounted in the base. A detachably-installed left stand column is additionally arranged on the front side of the left plate, a detachably-installed right stand column is additionally arranged on the front side of the right plate, the left side of the door plate is installed on the left stand column and rotates around the left stand column, and then the right side of the door plate is driven to be opened and closed relative to the right stand column. And then the top cover is detachably mounted at the tops of the rear plate, the left plate, the left stand column, the right plate and the right stand column in a covering manner, so that the assembly of the mobile toilet is completed. Obviously, the structural components can be independently transported to the site and then adjusted according to the site installation position to be assembled into the complete mobile toilet, so that great convenience is brought to transportation and site installation, and collision and damage can be avoided.
Owner:CIXI DESHUN CONTAINER

Purification and deodorization equipment for mobile toilet

The utility model provides purification and deodorization equipment for a mobile toilet, which comprises a mobile toilet room, a squatting pan, a grey water tank, an anti-skid ground, an air inlet door, a top plate and an exhaust pipe, the grey water tank is fixedly arranged on the ground in the mobile toilet room, and the squatting pan is fixedly arranged above the grey water tank; the anti-skid ground is fixedly mounted on the ground in the mobile toilet room; the air inlet door is rotatably mounted in front of the mobile toilet room through a hinge, the top plate is fixedly mounted at the top of the mobile toilet room, and the exhaust pipe is fixedly mounted above the grey water tank, penetrates through the top plate and extends outwards; due to the arrangement of the air inlet door and the exhaust pipe, the deodorization effect is high, and exhausted air in the ash water tank can be prevented from being diffused outwards.
Owner:CHONGQING KELAIYA TECH CO LTD

Modularized multifunctional movable square cabin toilet

The utility model belongs to the technical field of square cabin toilets, and particularly relates to a modularized multifunctional movable square cabin toilet which comprises a square cabin toilet body and a cabin door, the cabin door is installed on the surface of the square cabin toilet body, a solar panel is installed at the top end of the square cabin toilet body, a urinal is installed in the square cabin toilet body, and the solar panel is installed in the square cabin toilet body. The inner wall of the shelter toilet body is connected with a wash basin, and the back side of the shelter toilet body is connected with a water storage tank; a water outlet pipe is connected to the bottom end of the wash basin, a filter box is connected to the other end of the water outlet pipe, a drainage pipe is installed at one end of the filter box, and a filter screen is installed in the filter box. Then the wastewater is treated through a filter screen, a first activated carbon filter plate and a second activated carbon filter plate, and then the treated water resource is reused through a drainage pipe, so that the waste of the water resource is avoided.
Owner:FUJIAN XINGRUI SPECIAL EQUIP TECH CO LTD

Display cabinet of hydrosanitary devices and / or associated products

Display cabinet of hydrosanitary devices and / or associated products configured to contain and keep a first hydrosanitary device and / or associated product in a first predefined position and / or spatial orientation and including a body having a first portion and a second portion reciprocally movable to define at least:an opened configuration of said body, wherein said first hydrosanitary device and / or associated product results visible and / or accessible from outside the body, anda closed configuration of said body, alternative to the opened configuration, wherein said first hydrosanitary device and / or associated product results enclosed inside said body and / or not visible, and / or inaccessible, from outside the body;said display cabinet being configured to be transportable along with said first hydrosanitary device and to be stably positionable on a resting surface in an exhibition environment;said body being configured to simulate an application context of said first hydrosanitary device and / or associated product.
Owner:GESSI SPA

Outdoor sanitation system including an urinal unit for temporary placement and frequent transport

A sanitation system and a method for transporting such a sanitation system includes a urinal unit which has a unit body having at least one urinal compartment and at least one urinal unit accessory which has an accessory body. An outer shape of the accessory body is adapted to an inner shape of the inner compartment of the unit body. A close fit between the urinal unit accessory and the inner compartment of the unit body is obtainable to provide a stable transport assembly. Preferably, the urinal unit is provided with a compartment lock member and the urinal unit accessory is provided with a cooperating accessory lock member.
Owner:DANIFE BV

Plastic environment-friendly emergency mobile toilet

The utility model relates to the technical field of toilets, in particular to a plastic environment-friendly emergency mobile toilet which comprises a shell assembly, a plurality of grooves are formed in the middle of the bottom end of the shell assembly, and screw rods are arranged at the top ends of the interiors of the grooves through bearings. When the plastic environment-friendly emergency mobile toilet is moved to a bumpy road section, the buffering force of the plastic environment-friendly emergency mobile toilet in the moving period is greatly improved, the problem that equipment in the plastic environment-friendly emergency mobile toilet is collided and damaged due to the bumpy road section is solved, the maintenance cost of the equipment is greatly reduced, and through cooperation of a motor, a double-end bevel gear and a lead screw, the service life of the plastic environment-friendly emergency mobile toilet is prolonged. According to the plastic environment-friendly emergency mobile toilet, the plastic environment-friendly emergency mobile toilet can be moved according to the requirements of people in the using period, the problems that an existing toilet is large in size and cannot be moved according to the requirements are solved, waste of resources is avoided, and then the requirements of the plastic environment-friendly emergency mobile toilet are met.
Owner:HUBEI TIANMEN GUANHUA SCI & TECH CO LTD