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China Coal Group For Obtaining The Explosion-proof Certificate And Mining Product Safety Mark Inspection Report

1.The shaft bears the full load of the negative machine, so good lubrication has a great relationship with the life of the bearing. It directly affects the service life and operation rate of the machi

1. Lubricant: Lubrication has a great influence on the performance and service life of the machine. Oil-free operation is strictly prohibited, and it is best not to use grease for lubrication to avoid

Gasoline rock drill use this machine to operate conveniently and efficiently, reach the good level of similar products

China Coal News Women's Volunteer Service

Recently, Comrade Qu Qing, Chairman of China Coal Group, was once again awarded the honorary title of “Advanced Individual in Shandong Province for the Integration of Informatization and Industrializa