Refrigerant: R717, R507, R744, etc. Tube and Fin material corresponding to heat exchange medium: Stainless Steel Tube and Aluminum Fin (ammonia, carbon dioxide, glycol, etc.) Aluminum Tube and Aluminum Fin (ammonia) Copper Tube and Aluminum Fin (fluorine) Steel Tube and Steel Fin (ammonia, due to the environmental impact of the galvanizing process, the production of product made of this material has been strictly controlled ) Installation Form: ceiling type, floor type, warehouse type, loft type, etc. Liquid supply: pump supply, gravity Heat Exchange Area: 110-715 ㎡/ table (customized non-standard equipment is optional)