Stainless Steel Pipe: 1.Material:201,202,304,316L,430,etc ... 0.25-3.5mm 3.Surface:Mirror,Satin/HL NameStainless Steel pipeStandardASTM A554, A249, A269 and A270, A312Material Grade201 ... construction, upholstery, industry instrumentTestSquash test, extended test, water pressure test, crystal rot test, heat treatment, NDT Chemical Composition ... is 3 days for price usually. Stainless Steel Pipe