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equipment name model test precision（um） quantity  Japanese NIKON projection  NIKON V-12B(20&50&100) lens 0.002 2sets  oil press style micrometer calipers  Switzerland 0.002 7sets  exterior roughness apparatus  Switzerland Ra0.1 1sets  verticality calipers  san feng free dropping style 0.002 1sets  outer diameter micrometer  Switzerland 0.001 2sets  liquid crystal micrometer  Switzerland(0~25mm) 0.001 3sets  liquid crystal micrometer  Switzerland(25~50mm) 0.002 1sets  liquid crystal micrometer  Switzerland(50~75mm) 0.002 1sets  mechanical micrometer  Switzerland 0.001 7sets  vernier calipers  Switzerland(0~150mm) 0.02 8sets  vernier calipers  Switzerland(0~300mm) 0.01 3sets  rigidity machine  500MRA HRC0.5° 1sets  precision meta  Trimos 0.002 1sets  precision plug guage  Switzerland 0.001 sets