Du Zhou Trading was formerly known as Chongqing Du Zhou Chemical and Du Zhou Chemical Construction Co., Ltd! The production and research and development process of inorganic salts such as strontium salts, barium salts, and manganese sulfate has a history of 20 years! Brand manufacturer! Quality guaranteed! Chongqing Duzhou United Enterprise Co., Ltd. consists of two enterprises: 1. Chongqing Xingang Fine Chemical Co., Ltd., located in Tuqiao Town (Strontium Mining Development Zone), Tongliang County. The factory covers an area of more than 30 acres and has a total investment of 25 million yuan. It mainly produces fine chemical products such as strontium chloride and strontium nitrate, with an annual production capacity of more than 8000 tons and an output value of up to 30 million yuan. 2. Chongqing Duyang Chemical Metallurgy Co., Ltd. is located in Mingyue Township (Manganese Mine District), Chengkou County. The factory covers an area of 25 acres and has an investment of more than ...