On the afternoon of January 26th, in the intelligent equipment production workshop of Shandong China Coal Group,  a batch of mining waterproofing equipment were formal loaded after acceptance, and would be sent to a coal mine of Yishui,Linyi.
The mining waterproof airtight doors were mainly used in the underground main substation,the main drainage pumping station and the channel to the shaft bottom to prevent the sudden leakage of underground water.The mining waterproof airtight doors of our Group have the advantages of fast closing in a short time, sturdy and durable, good sealing and  easy to use.It has been highly recognized by customers at home and abroad for long time.At present,this product has got the national safety certificate of approval for mining products,and its all safety standards in full compliance with state regulations.

For many years,Shandong China Coal Group has always adhered to the operation philosophy of  "Survive on quality, Development on reputation." its production and sales of various mining equipment has never occurred technical quality problems and got high praise from the domestic and foreign customers,the market share has a great competitive advantage in the same profession.The products produced by Shandong China Coal have been sold well throughout 34 provinces,cities and autonomous regions, its nationwide customers have reached 360,000 and set a new benchmark for the development of mining machinery industry!