Guan Yi has complete precision measuring instruments to effectively control the quality.We ensure that every product is of the highest quality and meet our customers’ satisfaction.

Our instruments include:

  • Full size automatic measuring machine
  • Spectrometer
  • Film Thickness Measuring Machine
  • Image Measuring Instrument
  • Thread Effective Diameter Measuring Instrument
  • Digital 3-point Inside Micrometer
  • Johnson Gauge