... of investment castings per your drawings and samples investment casting partsFeatures:1) Process: a) Silica sol shelling-making ... (tensile strength, impact strength, elongation) 4) Software for specification drawings: Pro/E, Auto CAD, Solid Work 2005 ... nickel, chrome plating,sandblasting, painting, PVC powder coating 6) Precision machining: CNC lathes, milling, drilling, planning, grinding machinesand ...