AI

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

Recently, China Coal Group's first batch of nearly 4,000 tons of railway rail products was sent to Mongolia through rail and highway intermodal transportation, mainly used for local railway constructi

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

Disassembly sequence of YT-23 air leg rock drill (1) First remove the air leg, muffler cover, trachea, water pipe, brazing and other auxiliary components. (2) Remove the oil injector from the rock dr

Failure 1: Rock drilling speed is reduced (1) Reasons for the failure of the rock drill: first, the working air pressure is low; second, the air leg is not flexible enough, the thrust is insufficient