On the afternoon of March 12th, a batch of mine waterproof equipment-waterproof airtight doors were formally loaded after acceptance, and would be sent to Kuancheng of Hebei.
The batch of waterproof airtight doors produced by Shandong China Coal Group, mainly used for mine substation and the thoroughfare of the main drainage pump and the shaft station,  to prevent the leakage of underground water. The product of our Group with superior performance, reliable quality, and with some advantages, such as, quick closing in a short period of time, durable, good sealing, easy to use. The product has got the certification from State Administration of Coal Mine Safety. The product has been widely recognized by customers at home and abroad. 

For many years, our Group with quality products and attentive service, the production and sales of industrial products have been successfully sold to many countries and regions all over the world, established a good reputation in the industry! Next, We will be adhering to the business philosophy "quality of survival, service and development", carry forward the spirit of innovation, research more high-quality, high-tech products, started "China Coal" in the global! Warmly welcome customers at home and abroad to visit Shandong China Coal Group!