Roll-up steel pipes

VN10059985BActive Publication Date: 2026-08-17SEKANG STEELOUS CO LTD

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Patent Information

Application Number: VN1202204413
Authority / Receiving Office: VN · VN
Patent Type: Patents
Current Assignee / Owner
Filing Date: 2022-07-13
Publication Date: 2026-08-17
Estimated Expiration: 2042-07-13

Application Information

Patent Timeline

13 Jul 2022

Application

VN1202204413

17 Aug 2026

Publication

VN10059985B

Inventors: Chung Jae hyung; Lee Jong Kwon

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Abstract

The invention relates to a rolled steel pipe. By the means of the invention, it is possible to improve the bonding and bending performance of a rolled steel pipe through a specific ratio between the length of the recess and the length of the protrusion in the wide steel pipe body, and a specific ratio between the height of the protrusion and the length of the recess, and a specific ratio between the smallest and largest diameters of the steel pipe body and the specific bending radius of the recess.

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