1) Carbon steel fitting and stainless steel fitting 2) Standard: ASME, ANSI, API, JIS, DIN 3) ... Head Code: roundCertification: TUV, ISO9001Specifications Features:1) Carbon steel fitting and stainless steel fitting2) Standard: ASME, ANSI, API, JIS, DIN3) ... Material: WPB234, 3Features:1) Carbon steel fitting and stainless steel fitting2) Standard: ASME, ANSI, API, JIS, DIN3) Material ...