Dongguan Tiandao Solar Energy Technology Co., Ltd--the old Dongguan Wanjiang Wanxing Solar Factory is a hi-tech enterprise integrating Research and development of flat-plate solar technology, manufacturing of solar water heater and design and installation of solar water engineering. It is one of the manufacturer specialized in manufacturing all kinds of flat-plate solar products with annual capacity of 500, 000m2 for flat-plate solar collector.