... , China(Mainland)MACHINE TYPEPunching MachineWe are a professional manufacturer of Core Pins, Metric Core Pins, Punch, Punch Pins, Guide Pins, Dowel Pins, ... Parallel Pins, Guide Pillar, Guide Bush sets of stairs Lead Guides ... tolerance is about 0.002mm. All the pins are made of SKH9 materials imported from Japan. We have rich experience in ...