... for the production 4. OEM carbon steel zinc plated precision machining parts, machining products 1.precision cnc machining parts2.Various ... equipment, excellent R&D teams5. Strict quality control systemMaterial:Steel, stainless steel, aluminum, zinc, copper, brass, plastic etcMachining process: ... , Auto CAD (IGS, STP, STL and X-T) carbon steel zinc plated precision machining parts, machining products