On the moring of July 12th, a batch of mining doors formally passed the examation and loaded in Shandong China Coal Group Industrial Park, would be sent to a mine at Xi'an city,Shaanxi province.
In the coal mine ventilation system,mining door is a kind of common ventilation facilities,which plays a very important role in the coal mine safety.The batch of product including outburst prevention air door,bidirectiona non pressure ventilation door and some other mining doors series products.All are independently researched and produced by China Coal Group machinery company and gainned the national mining product security and safety certification.The mining doors from our Group have the advantages of  artistic appearance,superior performance,convenient installation,excellent sealing performance,easy maintance.Our mining product never making any quality issue in many years.We got a splendid reputation in the domestic and overseas mining industry and became the leading brand in the mining industy.

Over the years, with the development concept" Based on Jining,Service for the World" ,almost all kinds of our products' market share are in the leading position in the mining industry,which set a new benchmark for the development of national mining and industrial enterprises.Next,China Coal will continue to carry forward the spirit of scientific and technological innovation,produce and develop more high quality, high-tech products for forging China Coal to a world-class brand!