Beijing kasswan technology ltd. Is a trading enterprise that deals with the import of refrigerated oil, refrigerants, compressors and refrigeration accessories. Work on the exploration of fluoropolymers, fluorinated fine chemicals, electronic specialty gases, alternatives to ods, pharmaceutical intermediates, front-line technological areas for pesticide intermediates. It is based on good faith to meet the needs of clients. The company has opened storage bases in beijing and shanghai in an effort to provide services to customers throughout the country. Welcome to the field