201 stainless steel pipe,201 welded tube erw 0.27mm 17mm tube Manufacture Standard:JIS,GB,DIN,ASTM,EN,AISI welded ... INOX 201 stainless steel pipe,201 welded tube erw 0.27mm 17mm tube Manufacture Standard:JIS,GB,DIN,ASTM,EN, ... etc.2)Applied field: construction upholstery, and industry instruments (fencing, railing,safe doors / windows, gate fittings, inside staircases, balcony balustrades, ...