Shaan'xi Richeng Technology Development Co., Ltd specializes in studying, designing, manufacturing and selling laser modules. Our company aim at the oversea market of laser and photoelectron products, directing against the semiconductor laser application especially. We have manufactured hundreds of products such as DOT Laser Module, Line Laser Module, Cross Laser Module, Modulated Laser Module, and Expander Laser Module (including Green, Red and Infrared). The products are widely used in mapping apparatus, industrial direction, laser distance finders, building put line, laser levels, medical treatment, military affairs, test teaching, light of stage, and laser point to appearance and other fields.