Zhongshan Yangge Lock Co., Ltd. whose predecessor was Sun Yat-sen Lock founded in July 2000, is a high-tech enterprise specializing in mechatronic intelligent locks. It is one of the framers and drafters of China's technical and quality standards for electronic locks and electronic door locks. It is a member of the China Security Industry Association and a supplier of key international and domestic projects such as the 2010 Shanghai World Expo, 2010 Guangzhou Asian Games, 2011 Shenzhen 26th Summer Universiade, Nanning ASEAN Expo and Sanya's Beautiful Top Seven Star Hotel.
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