Jiangsu Sunrain Solar Energy Co., Ltd.Our company is a professional solar water heater maker in china, with a factory covered about 80,000 square meters in Ninhai Industrial Zone. Depending on the advanced technology and modern equipments, we now can produce 3,000,000 all glass evacuated tubes and 200,000 solar heating collectors per year. For the certifications, till now, we have been passed the CE, ISO9001, ISO14001 and National CCC Standard. Especially in the solar industry, we have the test report according to the European solar standard EN2975-1,2 :2002 by German institute Fraunhofer-Institut für Solare Energiesysteme ISE. And in this year (2007), both of our U-pipe collector and heat-pipe collector have been got the SOLAR KEYMARK certification in Europe.