... size:1/2"-80" material:stainless steel certificate:ISO9001 and bv stainless steel 316l tee Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459,EN ... holder, manhole cover, stub,clamp,union ,valve etc Stainless Steel Flange StandardsASTMA182,ANSI B16.9, ANSI B16.28, EN10253 ... ,Socket Welding Flange,Thread Flange,Screwed Flange,Lap Joint Stainless Steel Reducer StandardDIN 2527,2573,2576,2642,2633,JIS ...