Stainless steel pipe and tube(square) 1)ASTM/ASME,GB,DIN, ... 3)Thickness:0.5-40mm 4)5t Stainless steel pipe and tube(square)1)ASTM/ASME,GB,DIN, ... South America, Europe and so on. Seamless stainless tube... BStainless steel tube is a hollow circular strip steel, widely used ... manufacturing machinery parts and engineering structures C.seamless stainless tubes for boiler and heat exchange High precision, ...