Donhe pipe has been generally accepted and recognized by the users for its reliable quality and excellent performance. In China the products are being sold all over the country and widely used in large and middle cities like Beijing, Shanghai, tianjin, chongqing as well as national key projects or important projects. Meanwhile, as an important material supplier to large gas/water companies like towngas, China resources gas, China gas, xin'ao gas, petro-China kunlun gas and huayan water and so on, it always plays an important role as one of the minority of PE pipe exporters, its products has been exported to Hong Kong, Argentina, Saudi arabia and Europe America and other countries or regions for many times and successfully entered the international market, receiving favorable comment from the users and the relevant departments.