FOB Price: US $10 / Set Min. Order: 5 Sets Body: Cast iron, Ductile iron Disc: Ductile iron, stainless steel 304/316, aluminum bronze, PTFE coating, nylon painting Sterm: CS, SS416, SS410, SS304, SS431 Seat: NBR, EPDM, PTFE Pressure: PN10, PN16