Established in June 2000, "YGS" is a leading manufacturer of electronic door locks from Zhongshan China. The company owned more than 80 patents and passed ISO9001:2008 international quality system certification in 2005. Product range includes hotel door lock, residential door lock, fingerprint door lock, electromagnetic lock, drop bolt lock, door closer, energy saving switch etc. Main projects of YGS electronic door lock include: 2010 Shanghai World Expo, 2010 Guangzhou Asian Game, 2011 Shenzhen Universiade and Nanning ASEAN Expo etc. Company products are widely used and sold in domestic China ( with more than 100 domestic offices and distributors ) and overseas markets ( with more than 30 countries and regions, such as Southeast Asian, Middle East, South America, Russia, Europe, America, Africa etc. )