打入螺栓
reamer bolt [= rimer bolt
镀锌六角螺栓螺帽
galvanized mild steel hexagonal bolt and nut
镀锌瓦楞螺栓螺帽
galvanized mild steel roofing bolt and nut
缸盖螺栓螺纹
cylinder head bolt thread
head bolt thread
减振器螺栓孔
vibration damper bolt hole
径向紧固液压螺栓
radial fit coupling bolts