Shandong China Coal Group Drilling Machine Branch

Roof bolter is a key equipment in the bolt support project. The speed and effect of the support are closely related to the quality of the support. Roof bolter can improve the efficiency of constructio

1. The function of the cooling system of the water well drilling rig When the engine of the water well drilling rig is working, a large amount of heat is generated due to fuel combustion and friction

Gasoline rock drills are mainly used for pavement crushing, wall demolition, railway tamping, stone crushing, cement, concrete and frozen soil crushing. Gasoline rock drills are easy to operate, save

Air leg rock drill operation will have different situations during operation, so how to avoid unnecessary trouble and carry out construction safely, which of course requires the operator to pay more a

The air leg rock drill is an earlier stereotyped product in my country. Compared with the same type rock drill, it has the characteristics of light weight, low noise, high efficiency and good economic

Roof bolter is a supporting equipment in the construction process, which assists workers to carry out anchoring works in dangerous positions, and has the characteristics of safety explosion-proof and