Book night vision at the best price

Dear sir,Kunming KELONGDA Optical Instrument Co., Ltd. is an optical instrument manufacturer. Its main customers are infrared digital night vision instrument, waterproof telescope, etc.We offer 1 / 3 price and high quality guarantee. Are you interested in getting our catalogue and price list?Best regardsMr.jiekKunming kelongda optical instrument co., LTDQQ：105649791Vx：rxm_105649791