Langfang Far East Prosperous Optical Instrument Co., Ltd . lies in Hebei Langfang economic and technical Development Zone. It is a research and production base invested by Beijing Far East prosperous Optical Instrument Sales Co., Ltd. There are 4500 Square meters. workshop, 800 Square meters office building and 1600 Square meters complex building for the first stage of the project, which is the biggest glasses apparatus and instrument production base of the North of China at present. Langfang Far East Prosperous Optical Instrument Co., Ltd has become one of the few large-scale glasses apparatus enterprises in China. write me on FarEastKevin at yahoo dot com