| 摘要 |
The invention relates to a machine for coating the interior of a pipe. The machine can be pulled through and positioned within a pipe or pipeline by a internal pipe tractor, and can be used to apply viscous liquids, including two part epoxies and urethanes, to the interior wall of the pipe. The machine is typically used for the overcoating of portions of pipe having defects in their internal coatings, for example, at their girth welds.
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