| 摘要 |
A surfacer coat ( 300, 300 ') includes a resin material ( 302 ), a plurality of first particles ( 306, 306 '), and a plurality of second particles ( 308, 308 '). The plurality of first particles ( 306, 306 ') and the plurality of second particles ( 308, 308 ') are uniformly distributed through the resin material ( 302 ). Each first particle ( 306, 306 ') is of a preselected shape and of a size ranging from about 5 microns to about 10 microns, and each second particle ( 308, 308 ') is of a preselected shape and of a size ranging from about 40 microns to about 50 microns.
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