Established in 2006, Shangyu Rongxin Electrical Co., Ltd. is specialized in manufacturing and selling electronic transformers. welding machine,LED lamps.Our company has a perfect quality assurance system. As a result of our rapid growth, we now have total assets of more than USD1,233,000, and employ over 150 employees, including 20 technicians. Our company manufactures all kinds of transformers, including electronic transformers, soil packers, electron ballasts and flourescent lamp ...