内侧打开半封闭小型拖链：满足电线电缆两端大于电线电缆直径的穿线要求，中等距离架空防屑使用、轻便速度快，广泛应用于工业设备自动化、医疗、机械手等领域。    Inside openable semi enclosed small cable chain, it can meet the requirements of threading the cable with both end connectors larger than the diameter of the cable. It can be used in the field of industrial equipment automation, medical treatment, manipulator and so on.