HENG YANG GUANG XUE

Spectroscopes; Filters for optical devices; Laboratory equipment, namely, spectroscopes; Laser equipment for non-medical purposes; Microscope objectives; Optical filters; Optical frames; Optical glasses; Optical lens sights; Optical lenses; Optical lenses featuring anti-fog coatings, UV-blocking treatment, anti-scratch coatings; Optical lenses made of glass, plastic, polycarbonate; Optical or telescopic lens sights; Optical tables; Prisms for optics purposes; Scientific and technical apparatus, namely, optical mirrors