Flange, Auto Parts, Fastener manufacturer / supplier in China, offering ASTM A266 SA 266 Gr 2 Sorf Wn Bl Flange, 6A Type 6000 Psi / 45 MPa Weld Neck Rtj Flange CNC Machining Part CNC Precision Part CNC Machined Part, 6A Tbpx 68000psi 34.5 MPa Weld Neck Rtj Flange CNC Machining Part CNC Precision Part CNC Machined Part and so on.