Model Number: Outer Diameter: 20*30-600*800mm Brand Name: WXT Key Specifications/Special Features: OD:20*30-600*800mmThickness:0.6~25mmLength:1-12m or as requestSteel materials： Q195-Q235 , Q345 , S235, S355, S235JR, S355JR.STK400/500Standards： GB/T6728:2002 , ASTM A500 , JIS G3466 , EN10210 ,EN10219, ASTM A500 Gr. A.B.C.Usage： Widely used in construction, bridge, highway, windows of model steel door, machinery, chemical industry, supermarket goods shelf and so on.Ends：Usually plain ,but can be beveled or by your choiceSurface：Black, galvanized, pre-galvanizedTechnique：Hot rolled
Type：Welded
Test：Chemical component analysis, mechanical properties (ultimate tensile strength, yield strength, elongation), technical properties (flattening test, bending test, blow test, impact test), exterior size inspection, hydrostatic test, x-ray test.

Package：1.Water-proof plastic cloth

2.Woven bags

3.PVC package

4.Steel strips in bundles

5.As your request