| 摘要 |
A device for handling an object such as a pipe comprising a cylindrical member, with four disposed adjacent one another elongate grooves or recesses in the peripheral direction in the surface thereof and extending in upward direction, with the first and last open at the bottom, and merging into one another at the top and bottom ends via trapezoidal grooves or recesses, the whole being adapted to receive and co-operate with at least one lug projecting from the surface of the pipe. |
