Optical lenses
Contact lenses
Copy paper, welding electrodes, photographic materials and general goods
Aspheric
Intraocular lens
Optical goods
Aspheric
Optical Encoders
Optic products like glasses, contact lenses
Optical materials, lenses, windows and prisms, filters
Optics, lenses, prisms for the imaging and photonics markets
Optical components, ophthalmic lenses in glass and plastic
Intra ocular lenses, ophthalmic instruments
Optical brightening agent
Bst seedwhiter whitening agent
Optical lenses, cr-39 plastic lenses, frames & all kinds of ophthalmic products
Optical frames and sunglasses
Optical component, like waveplate, prism, wedge ,mirror, window, bbo, lbo and bonding crystal
Optical
Photographic goods and stationery
