stainless steel pipe: 1)material:201,301,304,316 2)standard:ASTM ... wall thickness:0.25--3mm 4)length:6m stainless steel pipe:Material:201,301,304,316 and so onStandard:ASTM ... :0.25mm-3mmRound Pipe:OD:8mm-104mm,thickness:0.25mm-3mmsquare Pipe:size:12mm*12mm-100mm*100mmRectangle Pipe:10mm*20mm-95mm* ... and gas transport, structure , boiler, heat exchanger, super heater Quality Stainless Steel Pipe