Mainly USES in the steel structure constructing, the electric power tower, the communication tower and other mechanical profession plate class, Which is the best choice of plate drilling.
主要用于建筑钢结构、电力塔、通讯塔以及其它机械行业平板类，是平板材料钻孔的首选设备。
2
The characteristic and mechanism of impact drilling machine are introduced followed by the summary of the present status of impact drilling machine tower researches at home and abroad.
本文首先介绍了冲击钻机的特点及工作原理，综述了国内外冲击钻机塔架的研究现状。
3
This modification in the XY-44 Mine drilling rig based on the addition of automatic revolving tower of the drilling rig so that the function will be more perfected.