We're a professional manufacturer of Refrigeration parts and Auto A/C parts.We have been three main series of products by making great efforts for decades: DSF 4-Way reversing Valve series, FDF refrigeration valves series, QRF Thermostatic Expansion valves series for automobiles, family and commerce. There are top-ranking productive assembly lines with advanced productive techniques, all ready monitoring equipments and high automation in this company. There are lots of series of products have been utilized by many main engine plants both at home and abroad, with their good quality and reliability. The excellent quality is trusted and praised by numerous customers.