Brand:GS Models:LM800
Product use:oil drilling tool
drilling oil screw drill tool
warranty time:2040-12-08
Hob is used in shaft drilling rig for full face drilling and
classification of surface soil, rock broaching cutting tools. Shaft
hob is mainly used in mining, hydrogeology, ports, Bridges,
buildings, and national defense construction of open caisson
construction. At the same time apply to whole section rock tunneler
with hob broken rock. Use the knife has a high degree of
mechanization, suppling tunneling speed, good quality, low labor
strength, construction safety operation, etc. Is the development
direction of shaft excavation at home and