| 摘要 |
In a paint roller having an inner core with an outer annular surface and a radially resilient, substantially cylindrical paint roller medium extending around and affixed to the inner core for rotation therewith, the improvement wherein the outer medium has a substantially uniform outer diameter and comprises a base of resilient porous material, and a distribution of non-porous material which masks portions of the base. Preferably the distribution of non-porous material is random.
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