Hangzhou ELK Refrigerant High-Tech Co.,LTD located in the picturesque Langkou,Taihuyuan Town at the West suburb of Hangzhou, Away from Hangzhou about 40 KMS,from the Huangshan Anhui200 KMS, from Shanghai 200 KMS.-----It enjoys very convenient traffic. We own a practical workshop area of 15,000 square meters, specialize in manufacture the substitute of CFC and other refrigerant and Welding & Brazing Gas(MAPP Gas), We own advanced development technologies, talent, We advocate environmental protection engineering, so we develop and promote advanced and environmental friendly products.We scrupulously  abides by the commitment of providing users with good-quality products and lifelong services,which are trusted and supported by all the users.Till now, the leading products  are environment-protective refrigerants such as R600A,R134A,R22,R1270,R290,R401A,R402B,R404A, R406A, R407C, R408A, R409A ,R410A, R415B , R417A,R507 etc and Welding & Brazing Gas(MAPP gasPropanepropylene). It enjoys rather high reputations in the industry.Management aim:Scientific Managent,Quality First, Honest Business,Clients First,Continous innovation.