PDF(131 KB)
FGC-15D large-diameter DTH air hammer drilling system and its application in offshore rock-socketed pile hole drilling
Kun YIN, Jianming PENG, Maosen WANG, Zhanjiang ZHOU
世界地质(英文版) ›› 2006, Vol. 9 ›› Issue (2) : 138-140.
PDF(131 KB)
PDF(131 KB)
FGC-15D large-diameter DTH air hammer drilling system and its application in offshore rock-socketed pile hole drilling
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