... possible, and as low as 0.15 % is possible for small dimensions. Castings can weigh from a few grams to 35 ... machinery parts, such as,Engine parts: Camshaft, crankshaft, intake and outtake valve, rocker arm, connecting rod, cylinder liner, piston, hydraulic lifters etc ... , friction material and filtering material.- Grass cutter parts- Machining tools Engine parts