We are glad to introduce ourself as a professional manufactory of pressured and non-pressured solar water heater, solar collector heat system and accessories including all glass vacuum tube, micro computer controller, connection, valve and ***** solar water heater and solar collector have obtained PICC&＃039;s(People&＃039;s Insureance Company of China) quality insureance and with the approval of ISO9001 and CE certificate.We always treat the quality and quality control as our company&＃039;s life in the market.Based on this, we guarantee our distributors 5 years&＃039; guarantee for our products.We produce over 250, 000 units every year, which sells not only in China domestic market and also export to Turkey, Spain, Italy, Malta, Mexico, Middle East, USA and so on.