... years' production experience 2) mining machinery casting part 3) various materials 4) ISO9001-2000 5) OEM is ... , gravity casting, sand casting4.Machining: turning, milling, drilling, grinding, threading, CNC machining, etc.5.Finishing: ... , hardness testing, tensile testing, impact testingInvestment casting for mining machinery partInvestment Casting Part Application: Automotive & Transportation ...