| 摘要 |
Utilization and attachment of two V-type units, oppositely positioned onto a conventional C-clamp, a machinist's vise, a woodworker's vise and other clamping devices, enables positive clamping of cross-sectionally curved objects, such as pipe and tubing. Two cross-sectionally curved objects may be positioned and positively held at any angle with respect to each other by use of alternate embodiment of invention.
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