Kunming Yulong Optical & Electronics Technology Co., Ltd. is a high technology company, which specialized in optical filter design and processing. OPTOLONG Established in 1999, and located in Kunming City .We provided nearly 2000 optical coating lenses for more than 700 optical companies all over the world, and we have working relations with 4 global top 500 enterprises and 2 world famous EMS manufacturers.We've obtained ISO9001 system certificate since 2005. In September 8th, 2006, tested by SGS, ROHS certification. We are the first people of Golden Supplier from Alibaba, and passed the third party ---TUV Rheinland and Bureau Veritas independent audit.
