CANWIN BUILDING MATERIALS Founded in 2003 from the special materials branch factory of Zhejiang Lanxi Special Cement Company, which was founded in 1978, it is now a high-tech enterprise specializing in the research, development and industrialization of special materials such as concrete durability enhancing materials (concrete anti-corrosion and rust inhibitor), concrete admixtures, ultra-fine grouting materials, waterproof mortar, etc. Participated in the construction of many provincial and national key projects and foreign aid projects of the Ministry of Commerce, Such as Senegal Afeniam dam repair project, Zhejiang Yongzhou railway, Zhejiang Yongzhou high-speed multiple lines, Zhejiang Hangzhou new Qiantang River bridge, Zhejiang Ningbo Zhoushan Port Zhoudai cross-sea bridge, Yushan bridge and Fuwing gate bridge, Zhejiang Zhoushan Xiushan Bridge, Zhejiang Zhoushan Guanshan Bridge, Zhejiang Zhoushan Shenjiamen Guanyin cross-sea bridge, Zhejiang Wenzhou Oujiang North Bridge, Zhejiang Wenzhou Oujiang Estuary Underground integrated pipeline corridor, Fuzhou Second Airport Expressway, Jiangsu Dafeng Port Railway, Qingdao Jiaozhou Bay Second Undersea Tunnel, Qingdao Jiaozhou Bay Undersea Tunnel, Yunnan Darui Railway Gaoligongshan Tunnel, Xiamen Second West Passage, Zhanjiang National Reserve Project, Guangzhou Gaodong Land Corridor Project, Guangxi Fangcheng Port Shuangdun Fishing Port Project, etc. The company has advanced production lines of ultrafine powder circulation classification system and concrete admixture production lines and advanced testing instruments to ensure that the company's product pass rate of 100%, the company's annual production capacity of 100,000 tons.