Stainless steel pipe and tube(square) 1)ASTM/ASME,GB,DIN, ... 830mm 3)Thickness:0.5-40mm 4)5t Stainless steel pipe and tube(square)1)ASTM/ASME,GB,DIN,JIS, ... , good corrosion resisting and high tempera... D.Qingdao sino steel co.,ltd was one large steel holding company,as a ... equality,mutual benefit and win-win,greatly supporting the healthy and rapid development of China's iron and steel industry. If ...