国标镀锌膨胀螺丝加长外膨胀螺栓拉爆螺丝钉膨胀管m6m8m10m12-m20 8*

镀锌膨胀螺丝超长加长铁膨胀螺栓m6m8m10m12m14m16m18m20 10*120

旺驰镀锌膨胀螺丝m6m8m10m12铁膨胀螺栓蓝白锌内置膨胀螺丝 10只镀锌

膨胀螺栓螺丝加长镀锌膨胀螺丝铁膨胀螺丝套装膨胀丝彭胀钉6m8m10 m6*

化学螺栓国标加长化学锚栓高强度膨胀螺丝8m10m12m14m16m18m20m22 m12