Q: How do you control the quality?
A:The equipment we have to assure the quality: American ZYGO Laser Interferometer,German Mahr Surface Profilometer,American Spectrophotometer Lambda 950,Japanese Mitutoyo Altimeter Instrument
A:The equipment we have to assure the quality: American ZYGO Laser Interferometer,German Mahr Surface Profilometer,American Spectrophotometer Lambda 950,Japanese Mitutoyo Altimeter Instrument