Hardware slide rail 1.Samples:available. 2.Tight tolerance. 3 ... ,threading,welding, tapping, riveting,cutting,punching,drilling,turning,milling,grinding,rolling,cold drawing, spinning, forging, etc.MaterialAluminum, copper, brass, ... power switches, miniature switches, architecture, commodity and A/V equipment, hardware and plastic molds, sports equipment and gifts,etc.Quality ControlConducted ...