Butt-WeldingCrossSize:1/2"~48"（DN15~DN1200）WallThickness:Sch5~Sch160（1.5mm~60mm）Material:Stainlesssteel(304,304L,316,316L,317L,310S,321)ProductionArt:Cold-rolling,Extrude,PressSurface:PassivationAfterPolishingAndSand-BlastingStandard:GB12459,GB/T13401,HGJ528-90,A***EB16.9,JISB2311,DIN2615)