We are YIH DAR Technologies Co., Ltd ,has been established since 1995. Working devotedly in optical industry for over 10 years, and develop several kinds of optical technologies, for examples: Sputtering in-line coating technology, Multi-layer evaporation coating technology and Chemical dipping coating technology to be a professional optical manufacturer. Not only we could provide all kinds of optical products, but also we could used special coating experience to cooperate with customer for develop special product what customer want. Current products series list as below: Glass Substrates Optical Product Series Plastic Substrates Optical Product Series Metal Substrates Optical Product Series Car Rearview Mirror Product Series Special Application Product Series - You can visit our website as well for more information. If you are interested in our products and wish to step further, kindly please contact us by e-mail .We shall reply you ASAP with best prices. Your early reply will be highly appreciated.