...
2025-08-16 17:59
649
...
2025-08-16 17:56
1007
...
2025-08-16 17:48
1146
...
2025-08-16 17:45
860
When selecting rock drill tools for tunnel drilling, it is important to consider several factors, including the type of rock formations to be drilled, the size and depth of the tunnel, and the available drilling equipment
...
2025-08-16 17:43
1338
...
2025-08-16 17:05
790
...
2025-08-16 16:53
1731
1
...
2025-08-16 15:31
535
...
2025-08-16 15:17
2969
In addition to breaking up hard materials, pneumatic jack hammers can also be used for a variety of other tasks. For example, they can be used to remove old grout or plaster from walls and ceilings, or to break up frozen ground before excavation For example, they can be used to remove old grout or plaster from walls and ceilings, or to break up frozen ground before excavation
...
2025-08-16 15:17
320