Shanghai Yaokan is a high-tech company with more than 10 years experience of R&D, production and sales of high-purity solvents. In 2018, Shanghai Yaokan jointly invested 10 million US dollars with Daqing Oilfield Feima Co., Ltd. which located in Daqing City, Heilongjiang Province to build a high-purity solvents plant with an annual output of 5000 tons / year using world advanced technology, the plant has been successfully put into operation. In addition to producing biological, pharmaceutical, ...