... tee, nut; Auto-latheturning precision part: precision electronic parts, fasteners, and other jeweler accessories(3) Main equipments: CNC lathe, Auto- ... lathe, meter lathe, pressing and forging machine, polishing equipment, etc.(4) Main inspection devices ... valve test bench, micrometer,thread ring gauge and plug gauge and other regular gauges.(5)Certificate: SGS ISO 9001 ...