The electric guide rail sections produced by the roll forming equipment which developed by our own company adopts steel plate cold machining roll forming once to ensure the precision of the section? size. The unit length of the rail is 4-6m, it adopts coupler connecter, and can be lengthened to any length according to your needs. So this equipment is each crane machine factory? necessary convention product. It is used in steel structure gate wall cupboard, can be current with imported product, it also can be used as the equipment? spare part. It widely used in railroad junctions, ports, freight yard etc. all the other motion-type driving power? electrical distribution system. /english/product/xproduct8.htm