... ,according to customers' drawings or samples.3).Materials: Stainless steel ,cold work steel ,spring steel ,aluminum alloy,brass, bronze,copper, plastic , ... .5).High quality control.100% inspection before shipping.Measuring tool:CMM,Projector,High gauge,Caliper,Pin Gauge,Thread gauge,6 ... Roughness Ra0.8-3.2SoftwarePro/E,Auto CAD,Solid work,UG,CAD,CAMAnnual Capacity:100,000pcsMOQ:10pcsLead Time:15- ...