Dong Guan Rational Precision Instrument Co., Ltd is a high-tech enterprise that integrates optics, mechanism, electricity and software program. We are researching and producing the high quality products with reasonable price for our customers. We have passed ISO9001:2000 Certification and our major products have passed CE certification. Our products have been sold not only domestic but also exported to many countries and areas, such as Taiwan, Korea, Horland, Tailand, France, America, Malaysia, Iran, Brazil, and so on. Excellent quality cost ratio makes our company be recognized in our customers.