Investment Casting, Precision Casting, Sand Casting manufacturer / supplier in China, offering OEM Customized forged steel Rotary Drill Cutting Pick Auger Teeth Bullet Teeth for rock drill bits, OEM Customized Die Forging Intake/Inlet/Exhaust Valve Rocker Arm Lever for Diesel Engine Parts, Francis Hydro Turbine Ca6nm Steel Casted Monoblock Pump Runner and so on.