Stainless steel pipe and tube(square) 1)ASTM/ASME,GB,DIN,JIS,T14975,ETC 2)Outside ... :0.5-40mm 4)5t Stainless steel pipe and tube(square)1)ASTM/ASME,GB,DIN,JIS,T14975,ETC.2)Outside ... High precision, smooth surface, good corrosion resisting and high tempera... D.Qingdao sino steel co.,ltd was one large steel holding ...