... stamping, automatic stamping, punching, bending, welding, verical milling, grinding, bean drill, CNC, ultrasonic cleaning machine so on....3.testing equipment: Salt ... projector, micro-density tester, digital coating thickness gauge, thread gauge, torque meter, magnifier, standard plate gauge, micro meter, pin gauge ... iron...7, Certification: ISO9001:2000, ISO/TS16949:2009. (wingo 002) metal stamping