... can be ordered Lloyd`s qualification rectangular steel tube at Tianjin Port China Feature Dimension10 x 20mm - 800 x 1000mmThickness0 ... , BSGB and SY requirementsApplicationWidely used in curtain walls, construction structure, machinery, container, furniture structure, electromechanical hardware, door and guardrail, hall ... Certification is Welcome (SGS, BV, Intertek) rectangular steel tube Tianjin Port