half-nut lever对开螺母手柄
half-nut cam开合螺母凸轮
half-nut翻译;开合螺母;半螺母英语
half bright nut半精制螺帽
lower half nut对开螺母下部
half nut split nut对开螺母
half-rought nut半粗制螺母
half-bright nut半精致螺母;半精制螺帽
half nut detail对开螺帽