On the afternoon of April 6th, merchants from Jixi  of Heilongjiang Province visited China Coal Group for purchasing refuge chamber door, Group e-commerce company deputy general manager Zhang Zhenguo received the merchants and expressed warmly welcome on their arrival.
Accompanied by General Zhang, Heilongjiang merchants visited the intelligent equipment production workshop of China Coal Group, they carefully observed the production process of the equipment and checked the sample, the staff made a detailed description and introduction about the technical parameters of product. The refuge chamber door produced by our Group has the advantages of flexible, fast, reliable, water and gas double sealed and high strength. It can effectively prevent the material loss and intangible loss. This equipment is easy to install, it can withstand the shock wave of 1.0MPa and prevent toxic and harmful gas effectively. It has an emergency door and observation window, and its service life can reach more than 10 years. The product has been widely praised by domestic and foreign customers. At present, this refuge chamber door have passed the National Utility Model Patent and  fully compliance with national standards.

For many years, China Coal Group adhere to the development philosophy of "survive on quality, development by service" , we have nearly 100 mine products obtained the national security certification certificate and the national utility model patent. A number of domestic and foreign large mining groups reached long-term strategic cooperation with our Group. Next, China Coal Group will promote the overall realization of the strategic objectives of Globalization through better products and more attentive service, warmly welcome customers from all over the world to visit our Group!