... 1).Machining facilities: Precision CNC Milling machines(including 4-axis CNC milling machine, Rotating plate CNC milling ... according to customers' drawings or samples.3).Materials: Stainless steel ,col-rolled steel ,spring steel ,aluminum alloy, brass, bronze, copper, plastic ... requirements.5).High quality control.100% inspection before shipping. Measuring tool: CMM ,Projector, High gauge, Caliper, Pin ...