Founded in 1966, China Guiyang Xintian OETECH Co., Ltd is a large-scale comprehensive high-tech precession metrical instrument enterprise integrating development, production and marketing of optical, machinery, electrical and computing technology into an organic whole, with over 40 years’ experiences in product development and manufacturing in optical metrical instruments. Occupying an area of over 100mu and having over 2000 employees, our company has 6 subsidiaries including Guiyang Xinhao OETECH Co., Ltd, guiyang Xinhong Casting Co., Ltd, etc. and 2 product development centers in Guiyang and Shanghai under its control. China Guiyang Xintian OETECH Co., Ltd is the largest base for optical instrument production with the longest history in China; belonging to the 1st-grade measurement ser..