... .small tolerance welded thin wall steel pipe 1.material:201 202 304 316 SUS2.surface:Mirror,Chrome3.Min order:1 ... 7.we can deal with welded joint.Namewelded thin wall steel pipeStandardASTM A554,A312,A249,A269 and A270Material Grade304 ... , 320G, 400G Satin / Hairline400G, 500G, 600G or 800G Mirror finishApplicationbathroom handleTestSquash test, extended test, water pressure test, crystal rot ...