1) Carbon steel fitting and stainless steel fitting 2) Standard: ASME, ANSI, API, JIS, DIN 3) Material: ... round 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 ...