On the morning of June 11, a batch of mining waterproof airtight doors were loaded in the intelligent equipment workshop of Shandong China Coal Group after inspection and would be sent to XiAn, Shaanxi Province.
It is reported that, the shipped mining waterproof airtight door was independently researched and produced by Shandong China Coal Group, mainly used for the underground main substation and the main pumping station and drainage channels leading to the shaft bottom, to prevent underground sudden leakage and immersion. And with the advantages of fast close, rugged, good sealing, easy to use, the new type waterproof airtight door. The market response has been very good for a long time, was widely praised by domestic and foreign customers. At present, has been successfully passed the national mine product safety certification.

For many years, Shandong China Coal Group with high quality products and perfect after sales service fired "China Coal" in the global, products sold in 141 countries and regions around the world. In the future, we will continue to carry forward the spirit of scientific and technological innovation, accelerate the transformation of development model innovation, and actively develop high-end smart equipment manufacturing, accelerate the full realization of Group Internet+ globalization strategy.