[shī gōng jī jù
PU paint processing of external decoration, waterproof construction. Instruments lease. Wholesale and retail : building materials.
The latest constructing machine and the newest technology were adopted to ensure that the borehole is perpendicular to the rock face of roof and that the depth of borehole and the torsional moment of the anchoring bolt meet the design requirement.
Using crane to hoist and construct bridge is characteristic of simple in constructional machines, easy in operation, low in cost, short in construction time, safety and good quality.