- Shanghai Bontek Optoelectronic Technology Development Co., Ltd
- Main products: Lithium Niobate Wafer, Lithium Tantalate Wafer, Quartz Crystal Wafer, Quartz Crystal Ring, Quartz Crystal Blank, Fused Silica Substrate, Fused Quartz Substrate, Borosilicate Substrate, Fluoride Optical Prism, Fluoride Optical Window, Fluoride Cylindrical Lens, Fluoride Spherical Lens
