With the rise of European UPVC windows and doors in China in 1996, we began to develop rolling pulleys for slide doors and windows. With the continuous efforts, we have presented many new products in acceleration and a unique hardware system with Lianyongxin's own characteristics has come into being, making us a leading supplier in China featuring full product range, high quality and universality.

Since 2001, our headquarters has built up a nationwide marketing network, and meanwhile we have been making undying efforts to tap the international markets, such as Europe, America, the Middle East and Southeast Asia. With the expansion of our headquarters covering about 20000sqm in Fenghua City, Ningbo, China, we thus have many divisions in major cities, such as Guangzhou, Shanghai, Nanjing, Wuhan, Xi'an, Xinjiang Uygur Autonomous Region, Haerbin, Chongqing and Beijing especially, not to mention offices around China. They are all Lianyongxin's platforms to provide clients with better service.