... Degree45°,90°,180°TypeElbow, reducer, cross, pipe holder, manhole cover, stub,clamp,union ,valve etc Stainless Steel Flange StandardsASTMA182,ANSI B16 ... Flange,Blind Flange,Socket Welding Flange,Thread Flange,Screwed Flange,Lap Joint Stainless Steel Reducer StandardDIN 2527,2573,2576,2642,2633,JIS ...