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304不锈钢沉头内六角，膨胀平头内六角，膨胀螺丝内置式拉爆螺丝m6m8
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国标镀锌膨胀螺丝加长铁膨胀螺栓，拉爆螺丝6810121618
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镀彩锌膨胀螺丝8mm膨胀螺栓，m10加长拉爆螺丝m6爆炸螺丝m12m14m16
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鱼鳞拉爆螺丝连体膨胀套管一体式拉爆头吊顶，三件套内爆m6m8m10
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304不锈钢外膨胀拉爆螺丝钉6mm加长爆炸螺钉膨胀螺栓m6m8m10m12
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镀彩锌膨胀螺丝8mm膨胀螺栓，m10加长拉爆螺丝，m6爆炸螺丝m12m14m16
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304201不锈钢外膨胀螺丝，镀锌加长膨胀螺栓，拉爆螺丝膨胀管m6m8m10
