Start

Preparations for shotcrete machine equipment before starting: 1. Check the electrical control system of the shotcrete machine for each line is solid and the availability of contacts leakage phenomeno

Afternoon of December 16, 30 sets of new model bucket-tipping mine cars and a batch of new spare parts for mining equipment manufactured independently by Shandong China Coal Group passed the quality i

Road roller use the weight of the vehicle to compress the surface being rolled (static) or use mechanical advantage (vibrating). Initial compaction of the substrate on a road project is done using a p