... :6-830mm 3)Thickness:0.5-40mm 4)5t Stainless steel pipe and tube(square)1)ASTM/ASME,GB,DIN,JIS,T14975 ... , the weight is light, so it is widely used for manufacturing machinery parts and engineering structuresC.seamless stainless tubes for boiler ... corrosion resisting and high tempera... D.Qingdao sino steel co.,ltd was one large steel holding company,as a window of foreign trade of ...