Dongguan Yi Hui Optoelectronic Technology Co., Ltd. was established in 2003 which is a set of sophisticated detection equipment R & D, production and sales of high-tech enterprises. The company's main products are: Video measuring instrument series, the optical projector series, the coordinate measuring machine series, tool microscope series, grating sensor and digital display meter series,the tensile testing machine series,the environmental testing machine series etc. and it is nearly one hundred kinds of testing instruments. It is widely used in electronics, plastics, molds,...