Hongji Building, Changshou Industrial Park, Mayang County, Huaihua City, China

Huaihua Jiannan Machinery Factory Co., Ltd is founded in 1970, is the leading supplier of smart meter in China. As a former military technology company, we designed and produced China's first...

Bd.3, Chaohuilou Tech Park, New Longhua District

Calin, as derived from China League of Innovation, dates back to the year 2006 when our team developed the new generation of CPU card electronic prepaid kilo-watt hour meter for China State Grid. No...