Our company has been ranked as one of the biggest manufacturers and exporters of UPS and valve lead-acid batteries in China after more than 12 years' hard work. With our production facility of 70,000 square meters and 510 employees, SunStone is the most competitive brand at home and abroad. Presently, our company is composed of three factories. First of all, Battery Plate Making Factory is located in Yunnan Province, which is one of the main lead production areas in China. The 2nd One is specialized in assembling batteries and the 3rd one is specialized in producing transformers and...