With a present capital of RMB 200 million Yuan, DOYIN was established in 1993, which specialized on the research and development, manufacture and sales of the well submersible pump, small submersible pump and land pump. As a new high-tech enterprise, the compang is the biggest manufacturer and exporter of well submersible pump in China. (According to ranking of irrigation branch of China Agricultural Machinery Industry Association). Company’s products includes 40 series, 2000 models, which are applied to a lot of fields, such as agriculture, forestry and irrigation water, living water, industrial water and pumping stations, municipal engineering, building water supply and sewage/water treatment, etc. DOYIN has exported products to more than 60 countries and districts in Asia, Europe and South Africa relying on the high quality, own export rights and best service.