round stainless welded steel pipe 1)Diameter:12-830mm 2)Wall Thickness:2.5-50mm ... )Length:2-12m 4)Certificate:ISO round stainless welded steel pipe 1.Material: 201,202,321,301,302,304,321H,304L ... ,furnishing,machinery as well as liquid and gas transport,vehicle vent-pipe,construction decoration,traffic equipments,etc3)Specifications:(or according to customers ...