MA

Recently, Comrade Qu Qing, Chairman of the Group, has been awarded two honorary titles of "Excellent Entrepreneur of Jining City" and "Excellent Entrepreneur of Jining High-tech Zone" in 2019 for his

Air leg rock drill application products are mainly used in construction sites, engineering tunnels, various types of mines, railways, water conservancy construction and national defense construction d

1. The newly-purchased pneumatic pavement breaker is coated with anti-rust grease with high viscosity, and must be disassembled clearly before use. When reassembling, lubricate the surfaces of moving

Pneumatic pavement breaker is one of the most commonly used attachments for excavators, and crushing operations are often required in demolition, mining, and urban construction. If the usage method of

In order to improve the production process of the products and help the high-quality development of the enterprise, on April 10, China Coal Group Intelligent Manufacturing Plant newly introduced intel

(1) Before ventilating the air leg rock drill, the handle of the pressure regulating valve should be moved to the "O" position to prevent the air leg from elongating suddenly during the ventilation an