... ; Ductile iron; Malleable iron; Tungsten steel, etc. 2. Machining processes: Metal fabrication, cnc machining, welding, forming, shaping, punching, drilling, turning, milling, grinding ... plating, decrement plating, etc. 4. Machinery and equipments: CNC machining center; CNC lathe; Normal lathe; CNC milling machine; General milling machine; General drilling machine; General ...