Tianjin Zhengyi Bike Industry Technical Develop Co., Ltd. is located in Huojiazui Industrial Zone, Tiedong Road, Beichen District, Tianjin. Our company covers an area of more than 200,000 square meters. We are a large-sized enterprise, with the bicycle and electric bicycle industry as the key industry, having the most advanced production quantities of the electric bikes. Our production capacity has broken 1 million sets and we have exported our products to Japan, Germany, and other European and American markets. Founded in 1995, our company has technical cooperation with Japanese Kanto Sanyo...