Beijing Unidrill, devoted to supply the best matching Kelly bar for every project, has developed 5-element interlocking Kelly bar and longest 6-element frictional Kelly bar, to solve the problem of...
moreThe diameter of the pile is 3m, and after 75hrs drilling with Unidrill Kelly bar, the pile successfully finished.
moreThe first 5 interlocking Kelly bar, 630-5*24m, after its service in several projects, came into use in Yangtze River Bridge recently. This Kelly bar has been used more than 1.5 years, about 6000 hr...
more