Lai Kai-Building Materials Co., Ltd.  founded in June 1998 and was formally put into production in August 1998. Plants are located in industrial parks with 101 wins Road, covers an area of 30,000 square meters. - Sultan, a production plant is now behind closed doors, and springs, metal accessories categories, the activities of noise and cut off series of automatic doors, including the revolving door, and other products. At present the total number of employees 260 people. Lai Kai-Building Materials Co., Ltd. in Beijing, China, Shanghai, Nanjing, Wuhan, Guangzhou, Shenzhen, Hangzhou, Xi'an, Jinan, Shenyang, Tianjin, Chongqing, Kunming, Haikou, Nanning, Dalian, and other regions with offices and is responsible for promoting and Sales of products and provide after-sale service and technical advice. Lai Kai-factory products mainly to domestic sales, and some products are sold to overseas markets, and as the company's development, gradually expand the export ratio.