The high precision optics  mounts  used  in  a  observatory  in  china . Used  for  observational  universe. The ...  details>>

Satellite simulation system Copyright the beijing optical century instrument co.,LTD. ...  details>>

Jumbo size curved guide rail Copyright the beijing optical century instrument co.,LTD. ...  details>>

3D film system the technical patent have mosaic the technical patent have mosaic ...  details>>

Copyright the beijing optical century instrument co.,LTD.   details>>