... OEM Manufacture 2. Silica Sol Casting 3. CNC Machinining 4. Super R&D We are specialized in producing kinds of precision ... 5kg to 2000kg size from 100mm to 2000mmInvestment Casting (precision casting) part with Machining :1.Process: silica ... alloy, copper/bronze/iron/etc.Process TechnologyCasting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment, Heat Treatment, Griding, Milling, wire ...