spring u-bolt 中文意思是什麼
spring u-bolt
解釋
彈簧騎馬螺栓-
Disassembly and reassembly machine for automotive wheel nut. disassembly and reassembly machine for u - bolt of automotive leaf spring
汽車車輪螺母拆裝機汽車鋼板彈簧u形螺栓拆裝機
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