1) Material: gray iron,ductile iron, carbon steel, alloy steel
2) Process: lost wax casting or sand casting
3) Standard: ASTM, SAE, ISO,DIN
4) Weight: 0.2-60kg
5) Surface treatments: sand blasting then paint, electrophoresis,
zinc plating
6) Heat treatments: tempering or annealing, induction hardening
7) Machining: CNC turning, milling, CNC milling, CNC drilling, CNC
boring, CNC threading, grinding