1 | Great impacting force, less air consumption and high drilling efficiency, long in service life. | |
2 | Ci naturally possesses the attribute of a transmitter, which swings between elegance and vulgarity . | |
3 | Mainly used in roadway construction, excavation rock and soil volume, opencast working, blom up holes of explosion & pre-intensity, for water conservancy projects. | |
4 | It is no part of the design of this treatise to aim at metaphysical nicety of definition, where the ideas suggested by a term are already as determinate as practical purposes require. | |
5 | SJZ series vertical shaft drill is the special equipment for drilling vertical shaft. It is reliable, precise, easy to operate, and suits a wide range of drilling diameters. |