... ,GB,DIN,ASTM,EN,AISI welded INOX 201 stainless steel pipe,201 welded tube erw 0.27mm 17mm tube Manufacture ... Test,Hardness Test,Impact Test,Flaring Test,Corrosion Test,stainless steel 201 tubesAvailable pipes & tubesStyle (Round / Oval / Square / Rectangular / ... stainless steel: grade: AISI 201, 202, 301,304, 304L, 316.etc. 2)Applied field: construction upholstery, and industry instruments (fencing, ...