... steel flanges 2.Standard: GB14976-2002, GB13296-2007, JIS, AISI, DIN, EN3.Size: 1/2" - 84"DN10-DN20004.Pressure: ND6-ND100 ... (DIN), PN6-PN100 (UNI, EN1092-1), 5K-30K (JIS), 150lbs-2500lbs ( ... :forged,casting12.Certification:ISO,QMS,DNV,KR,ABS,TUV,Lloyd's Register,BV.13.Application:petroleum, chemical industry,shipping industry,water ...