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Lifeline - PVC gas drainage pipes
Jan 21, 2016

Life project - gas extraction, lifeline - PVC gas drainage pipes. Gas is a resource, is a major hazard of coal mine disasters, is the main atmospheric gases. Significant gas accident occurred continuously have to cause the extensive concern from all walks of life. The government of the time, the gas extraction from municipal committee of the project life and resources engineering. Successively promulgated various first close state regulations to strengthen the gas extraction and strengthen supervision and management. Safe gas extraction must be used...