（1） Nylon drag chain Shaped like a tank chain, it is composed of many unit links, which can rotate freely.
(2) Nylon drag chains of the same series have the same inner height, outer height and pitch, and different choices of inner width and bending radius R.
(3) The unit chain link is composed of left and right chain plates and upper and lower cover plates. Each section of the drag chain can be opened, which is convenient for assembly and disassembly, without wiring. After the cover plate is opened, the cable, oil pipe, gas pipe, water pipe, etc. can be put into the drag chain.
(4) In addition, spacers can be provided to separate the space in the chain as required.
