Flange DIN standard,ANSI standard,BS,JIS standard from DN15(1/2") to DN5000(200"),Stainless steel 304,316,316L,carbon steel stainless steel FlangeDIN standard,ANSI standard,BS,JIS standard from DN15(1/2") to DN5000(200"),Stainless steel 304,316,316L,carbon steel Please contact us for detail tech infor and catalogue DIN 2576 PIN10 stainless steel weld neck flange