... ,ASTM,EN,AISI welded INOX 201 stainless steel pipe,201 welded tube erw 0.27mm 17mm tube Manufacture Standard:JIS,GB,DIN ... General Service)TP405 / TP410 / TP429 / TP430 / TP443 / TP446-1 / TP446-2 / S40800 / TP409 / S41500 / TP439 / TP430Ti / TPXM-27 / XM-33 / ... steel: grade: AISI 201, 202, 301,304, 304L, 316.etc.2)Applied field: construction upholstery, and industry instruments (fencing, railing,safe ...