-We specilize in solar application technology for more than 20years, especially for solar water heater; And also we are 10th years Golden supplier on alibaba. -Putting innovation and good quality first, so we get many certificates: ISO9001-2008,CE,CCC,Solar keymark,RoHs,SRCC,EN12976,EN12975 etc, Solar Keymark is a test report for heat pipe solar collector, EN12976 is for pressurized system, EN12975 for pre-heate system, Rohs tests all the material of our solar water heater -Cooperating with many famous company, such as FK solar in Germany since 2005, FUJISOL in Japan and Spain since 2007,the laileyandcoats since 2007, Chromagen in Israel since 2008. We provide non pressure system, pre-heated system, pressurized system and split system for them; Especially, for Laileyandcoats, we provide pressurized water tank; For chromagen, we provide flat plate solar water heater frame. - Monthly output: Above 2500 Sets. - Delivery time: 15 to 25 working days with different quantity.