Stainless steel pipe and tube(square) 1)ASTM/ASME,GB,DIN,JIS ... -830mm 3)Thickness:0.5-40mm 4)5t Stainless steel pipe and tube(square)1)ASTM/ASME,GB,DIN,JIS, ... so on. Seamless stainless tube... BStainless steel tube is a hollow circular strip steel, widely used in petroleum, chemical, medical ... the healthy and rapid development of China's iron and steel industry. If you are interest in these product pls ...