... 3)Competitive price 4) direct factory processing iron casting/gravity casting/OEM casting1)Over 22 years casting experience3)Competitive ... process, Strict quality Control System pump body 1) Product Material: aluminum alloy, zinc alloy and copper alloy.2) Surface ... done in house including: Tooling, Die casting, Sand casting, Gravity casting, CNC machining, CNC milling, Stamping, Plastic injection, ...