Hangzhou ELK Refrigerant High-Tech Co., Ltd. was established in 2006 and is located in Taihuyuan Town, Lin’an District, Hangzhou City. Now it has the annual filling capacity of 5,000 tons of various refrigerants, 3,000 tons of dimethyl ether and 5 million cans of welding and cutting gases (MAPP GAS, Map//Pro propylene, propane). The main products are environmentally friendly mixed refrigerants: R404A, R407C, R410A, R507, single refrigerants: R134A, R22, R32, R600A, R290, foaming agent, propellant: high-purity DME, welding and cutting gas: propylene, propane , MAPP GAS. Our products are widely used in refrigeration and heating, medical beauty, extrusion foaming, welding and cutting and other fields. ELK has one invention patent: MAPP GAS, 18 new utility patents, and is a high-tech enterprise.