產品特點：光學透鏡、光線清晰、低發散度、垂直度好，品質優良、體積小，高精確度、工業適用性強。

Product features: optical lens， the light clear， low emittance and vertical degree good， good quality， small size， high precision， strong industrial applicability.

售后服務

對本公司售出的產品一律保證一年保修，三年維修的原則，在保修期內出現的任何質量問題將給予認真負責的處理。歡迎用戶提出寶貴的改進意見。——-wxm

After-sales service

The company sold products are guarantee one year warranty， principle and maintenance of the three years of any quality problems during the warranty period will result in serious and responsible. Welcome users put forward valuable improvements.