... . We are specialized in investment casting, lost wax casting, die casting, sand casting ,machining, stamping and forging.Our ... request.Investment casting for mining machinery part1.Material: carbon steel, alloy steel, stainless steel, aluminum alloy, zinc ... , AISI, BS, DIN, JIS, NF3.Process: investment casting, die casting, gravity casting, sand casting4.Machining: turning, milling, drilling, grinding, ...