Langfang Sandi Eletric Tricycle Co., Ltd. is a the professional and biggest factory in China. We also have own laboratory to improve quality to meet the market requirements. The company covers 20 thousand square meters. Since 1999, we have researched and produced âXin Geâ and âXin Hangâ two series electro-tricycles. It is one of the earliest manufactures in China. The products have gained many certificates of honor awarded by the national ministries, provincial and municipal government. It is a research, development, production and sales of integrated enterprise, which owns powerful technology, advanced equipment, complete test instrument and dependable quality. The company has several experienced technical personnel and dozens of members of the research and development group. The products mainly sold to the large markets in China and other countries close to China. The company has set up long-term stable cooperative relations with the markets and developed quickly.