A batch of refuge chamber doors were loaded in Shandong Coal Industrial Park on the morning of December 10, and would soon be sent to a coal mine in Yulin City, Shaanxi Province. The product is mainly used for coal mine refuge chamber between the transition room and living room, can waterproof, fire proof, shock wave protection, security personnel in chamber , is one of the most popular mining products of our Group. The Refuge chamber doors shipped this time were independently researched and developed by China Coal Group, has the advantages of easy open, flexible, fast, reliable, water and gas double sealed, high strength, can effectively prevent tangible and intangible losses, easy installation, can withstand 1.0MPa shock wave, and can effectively isolate toxic and harmful gases, with emergency doors and observation window, the service life can reach more than 10 years. At present, the product has been passed the national utility model patent certificate, the product successfully exported to the United States, France, Canada, Russia, Australia, Korea, Iran, Indonesia, Sri Lanka and other countries around the world, has established a good reputation in mining industry at home and abroad, is China''''s leading mining industrial brand, product sales far ahead! As a large enterprises with cross- business, diversified business , China Coal Group adhering to the concept of development "life rely on credibility, quality for survive," , has been rated as municipal, provincial and national level "keep contacts regard credits" enterprises, establish a good reputation at home and abroad , set a new benchmark for the development of the national mining machinery industry! In the future, we will continue to carry forward the spirit of scientific and technological innovation, produce more high-quality products and high-tech products. Make China Coal brand into in bigger and stronger the world! Warmly welcome the global businessmen to visit China Coal Group for purchasing, and win-win cooperation!