... 圆周钻孔圆头螺母round nut with drilled holes in side 开槽圆头螺母slotted round nut 翼形螺母wing nut ...
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... 带槽圆螺母 round nut with grooves ; slotted round nuts 开槽圆螺母 Slotted round nuts 不锈钢圆螺母 Self Drilling Tapping Screws ...
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