... 80" material:stainless steel certificate:ISO9001 and bv pipe fittingsstainless steel Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459 ... Degree45°,90°,180°TypeElbow, reducer, cross, pipe holder, manhole cover, stub,clamp,union ,valve etc Stainless Steel Flange StandardsASTMA182, ... ,Socket Welding Flange,Thread Flange,Screwed Flange,Lap Joint Stainless Steel Reducer StandardDIN 2527,2573,2576,2642, ...