Taizhou Free Energy Development Co., Ltd. ("Free-energy"), located in eastern China, is an alternative energy researching, manufacturing and marketing enterprise.Being one of the most important solar water heater producers, we stand always on the solar thermal research's forefront. Our products orient mainly to exportation, the product range covers all types of large stainless steel pressure tank insulation, solar collectors, solar water heaters, working stations, cycle control, and pumping stations......