Unverified75% confidenceTradeoffTime unknown
轻量化露营/骑行场景优先选带铝合金卡扣的窄幅绑带，铝扣比钢扣轻约40%且不易生锈，但铝扣承载力低于同规格钢扣，重载运输仍需选锻钢棘轮
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