China Yangzi Group was established in 1988. YAIR possesses the world advanced production facilities, like OAK heat exchanger from USA, WAGNER powder coating line from Germany, AMADA punch equipment from Japan. Furthermore, YAIR owns 8 fully automatic assembly lines and 4 state level laboratories. YAIR products have passed ISO9000 quality management system, CE, KTC, SASO, SAA, RoHS and etc. Certifications. Products have been sold worldwide. So far YAIR has successfully developed more than 15 series products, like air cooled chillers, water cooled chillers, screw chillers, heat exchange processors, fan coils, ground source heat pump air conditioners units, ducted air conditioners and so on. Till now its production capacity has reached 800, 000 tons. PRIMST air source heat pump water heaters is another newly developed products. It extracts the heat from the air and supplies hot water for home and hotel. PRIMST has the advantages of energy saving, environment production, safety and health care. Now PRIMST has started the technical cooperation with Mitsubishi and Hitachi. PRIMST becomes the most professional water heater manufacture in China. Products have been sold to Europe and Asia. Health, Energy saving and Environmental protection are our four basic theme to sustain further developments.