... Malleable iron; Tungsten steel, etc.Machining processesPunching, Stamping,Welding, Molding, Assembling, investment casting, etc.Surface treatmentPolishing, zinc plating, ... plating, etc.Machinery and equipments Normal lathe; CNC milling machine; General milling machine; General drilling ... machine; General planning and grinding machine; CNC turning center; Wire EDM, etc. PackingPlastic bag ...