butterfly valves manufacturer Pump valve Terms of delivery: FOB shanghai/Ningbo Payment condition: TT Delivery Period: 30days Packing: Export packing/As per customer's request We have a Pump valve parts production Model No: Customized Material: Carbon steel/alloy steel/stainless steel Type : Chemical Hardening Sand Casting Method : Thermal Gravity Casting Sand Core Type : Resin Sand Core Application : Oil and Gas Machining : CNC machining