... ,GB,TP 4.Application:decoration and construction etc Stainless Pipes Inox 304 ASTM A554 Features:1.Material:AISI3042.Certificate:ISO9001:20003 ... : 1.Stainless steel pipes and tubes 201,202,301,304,316,etc 2.Stainless steel tubing for stairs,handrails,engineer projects ... /spiral pipe,general use pipe/tubeMaterial: 201,202,301,304,316,409,430,etc a)Round:9.5,12.7,16 ...