Established since 1997, Topwin Science & Technology Co., Ltd had been one of the leading professional pioneers in research and design, manufacture in the security and surveillance field in China. We��?��Ã?¢??re very aggressively involved in both domestic and abroad market with the powerful supply of high credit CCD camera, Dome CCD camera, Board camera, IR camera, Day & Night camera, Mini camera, Speed dome cameras, DVR and etc. Covering an area of over 2400 square meters, Topwin has 6 production lines, more than 400 sets of cutting-edge technology surveillance equipments, which can guarantee the product capacity of 100 thousand suits per month. Today Topwin is one of the leading security and surveillance manufactures with considerable technology and scale. Our products have passed ISO9001 quality management system certification, and some international certifications such as UL, CE, FCC. Our products with high credit are sold in Europe, America, Middle East as well as Taiwan and are widely used in many fields such as banking, public security, intelligent-building, intelligent-transportation and etc. With our experienced production group, excellent sales team, we��?��Ã?¢??re ready to provide high quality, best performance, as well as perfect After sales service to meet requests of customers from domestic and all over the world. Let��?��Ã?¢??s make good cooperation and promote both business and friendship to our mutual benefits.