Changzhou He Jia Solar Energy Limited Company was founded in October, 1998. Especially engaged in research, development, production and sales of solar Solar Collector, Solar water heater, Solar water heater systems in china. Our products have been upgraded continuously and the authentication of ISO9001:2000 international quality system has been always carried out in products. The multinational certification has been made, such as: "the Solar Keymark, " "SRCC" and "CE" etc.