产品特点：光学透镜、光线清晰、低发散度、垂直度好，品质优良、体积小，高度、工业适用性强。LYQ

Product features: optical lens, the lightclear, low emittance and vertical degree good, good quality, small size, highprecision, strong industrial applicability.

售后服务

对本公司售出的产品一律保证一年保修，三年维修的原则，在保修期内出现的任何质量问题将给予认真负责的处理。欢迎用户提出宝贵的改进意见。

After-sales service

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