... years OEM Manufacture 2. Silica Sol Casting 3. CNC Machinining 4. Super R&D We are specialized in producing kinds ... Stainless steel, Carbon Steel, Aluminum, Brass, Bronze or specified 3. Casting, Machining, Metalworking, Sheet Metal Bending, Surface Treatment ... Measure, Optical Specrometer, Impact Test, SpectrometerRough Test, X-ray Optical etcQuality Control1. Quality control: The defective products ...