... -6.0mm 3)Length:2-16m 4)Certificate:ISO9001 stainless welding pipes/tubes1.Material: 201, 202, 304,304L, 316,316L, ... steel welded pipes for food industry,supply and drainage water pipe,mast and fence,sewerage,architecture,furnishing,machinery as well ... as liquid and gas transport,vehicle vent-pipe,construction decoration,traffic equipments,etc3)Specifications:(or according to ...