... company arranged by clientsHebei Haiyuan Pipe Fittings Co., Ltd specializes in manufacturing steel buttweld pipe fittings and forged flanges, which are ... SCH100, SCH120, SCH140, SCH160, XXSMaterialCARBON STEELASTM A234 WPB, WPC; ASTM A420 WPL3, WPL6, A860 WPHY42, WPHY46, WPHY52, WPHY60, WPHY65 ... inspection company arranged by clients ASME B16.9/ASME B16.28/ASME B16.25/ASME B16.49 A234 WPB/A420 WPL3/WPL6 ...