... Price! 1. Main Material: Carbon Steel, Stainless Steel, Alloy Steel, Special Alloy Steel, Heat Resistant Steel, Aluminum Alloy, Zinc Alloy and ... Brass / Copper Castings with various material grades 2. Machining: Turning , Milling, Drilling, Grinding, Threading, CNC Machining, etc. 3. Finishing: Sand Blasting ... you with our good quality, competitive price and best service customized investment casting