| 摘要 |
A separable fastener includes a pair of fastener pieces. Each of the fastener pieces includes a flat base and a plurality of elastic engagement projections provided on and integral with the base and arranged in a plurality of lateral and longitudinal rows. The engagement projections have respective heads of a uniform size. Each of the heads is supported on the base via a pair of leg pieces united at the upper end to opposed edge portions of the bottom of the head.
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