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一、前言滚柱式套筒扳手(图1),是用于大批量生产中装配或拆卸双头螺栓用的工具.由于结构简单、操作方便,因此,在装配中应用比较普遍.
I. Introduction Roller socket wrench (Figure 1) is a tool for assembling or disassembling studs in mass production, which is more common in assembly due to its simple structure and easy operation.