Henan Doing Environmental Protection Technology Co., Ltd affiliated to Doing Holdings Co., Ltd, lies in Zhengzhou, Henan Province, China. It is a comprehensive environmental protection equipment manufacturing enterprise integrating process design, technology research and development, manufacturing, sales and after-sales service.

Relying on excellent technical R&D strength and innovative spirit, our company has won up to 23 new utility patents and invention patents. And our company is honored as the National High Technology Enterprise awarded by the Municipal Science and Technology Commission.

Our manufacturing factory convers an area of 40000+㎡, all customers are welcome to visit and test machine with the materials. Besides, we have the branch office and overseas warehouse and are building fabrication factory in Nigeria, Africa(19B Kudirat Abiola Way Olusosun Bus stop, Ikeja, Lagos, Nigeria), to provide customers convenience of picking up machines from warehouse directly more conveniently.