... Specification:1/2"-40" 3.Standard:DIN JIS ANSI 4.Certificate:GL BV DNV Forged Steel Flange:1 ... DIN2631, DIN2633,JIS B2220, JIS B 2216, ANSI B 16.5 etc.5.Material: Carbon Steel, Stainless Steel, Ductile Iron. ... , DIN 2635.3.ANSI Standard: ANSI B 16.5.4.JPI Standard: JPI 7S-15-84.5.API Standard: API6056.Nonstandard ... PL, WN.2.DIN Standard: WN, SO, BL.3.ANSI Standard: SO, WN, SW, Threaded, Lap Joint, Ring ...