high pressure stainless steel pipe fittings size:1/2"-80" material:stainless steel certificate:ISO9001 and bv high pressure stainless steel pipe fittings Stainless Steel ElbowStandardASME SA403,BS16.9,GB12459,EN ... , reducer, cross, pipe holder, manhole cover, stub,clamp,union ,valve etc Stainless Steel Flange StandardsASTMA182,ANSI B16.9, ANSI B16.28, EN10253-2 ...