1)welding neck , slip-on,socket welding,blind, 8-blind 2)ASTM A105, ASTM ... the TUV CERT ,ISO9001 - 2000, WO , PED.7)Standard: ANSI B16.5, B16.47, MSS, SP-44, AWWA, API, ... Pressure & Forging company LTD . engaged inforging of varieties of flange, axis , disk ,and unconventional parts, our forging flanges ... consist of 30 specifications derived from 7 standards, i.e. ANSI ,API ,MSS ,AWWA , DIN ,JIS ,BS as ...