stainless steel pipe,seamless tube Type:round,square,rectangular Standard:ASTM,A554,A269 Grade:201,304,202,301,316,316L stainless steel pipes, seamless ... ,17,18,19,20,21,22,23,24,25,27.3,28,32,36,38,40,45,47,51,60,63 ... ,40x20,48x23,50x15,50x25,60x15,60x30,73x43,75x45,95x45 stainless steel pipe