HANGZHOU WELLFOR CHEMICAL CO., LTD. is a professional enterprise engaged in the sales, production, and research and development of refrigerants. The company is located in Hangzhou, China, with convenient transportation. The company is committed to the layout and marketing of refrigerants in the international market. At present, our main products include traditional refrigerants such as R22, R134A, 4 series, and 5 series, as well as new HC refrigerants with our own intellectual property rights. The products mainly include refrigerant R134a R125、R32、R22、R142b、R143a、 Mi...