... " TUV & ISO9001 WN,SW,THD, BL,PL, LJ, Standard ansi flange a105STANDARD: JIS ,ANSI , DIN ,BS4504 ,EN1092, ... EN,MaterialCarbon steel, alloy steel, stainless steel ConnectionButt-welding,forged fittingApplications rangsuch as oil, chemical industry, water conservancy, electric ... flange, welding neck flange, plate flange, pure forged flanges,standard ANSI flange A105 Our factory have much experience for ...