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介绍可拆式膨胀螺栓的构造和工作原理 ,可拆式膨胀螺栓可取代轨枕上传统采用的硫磺锚固工艺的螺旋道钉。
Describes the construction and working principle of the removable expansion bolt. The removable expansion bolt can replace the spiral spike that is conventionally used in the sulfur anchorage process on the sleeper.