... :3/8"~160" 2.Standard:ASME, ANSI, API, DIN, BS, AS, JIS, JPI socket welding flange ansi b 16.5 1.certificate:ISO9001 ... ,a105 pn16 forged flange,socket weld flange,socket welding flange ansi b 16.5Basic Information Company Name:Hebei Gee Pipe Mill ... ), ring joints face (RJ)Standard: HG20592, ASME16.5-2009, DIN2633, ANSI, JIS,BS4504 etc.Material: 195,Q235,20II,16Mn,20Mn,304 ...