| 摘要 |
A roller drum assembly includes a roller drum for rotationally engaging a surface, a frame connected to the roller drum for manually controlling movement of the assembly, a tank mounted on the frame for retaining a liquid, and conduits mounted on the frame for directing the liquid from the tank to the roller drum, and further includes a wand mounted on the frame and in communication with the tank, for ejecting the liquid onto selected surfaces spaced from the roller drum assembly.
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