... steel pipes/tubes 1)AISI201,202,301,304,304L 2)Thickness:0.4-6.0mm 3)Length:2-16m 4)Certificate:ISO9001 stainless steel pipes ... /tubes1.Material: 201, 202, 304,304L, 316,316L 430,410,409 or according to customers' ... vent-pipe,construction decoration,traffic equipments,etc3)Specifications:(or according to customers’requests)4)Certificate:ISO90016.Technique: ...