The present invention relates to a rail-type chain using dike (c) shaped steel, that is, unlike the existing chain is connected by many rings of peanut-like, the present invention is a dike (c) It relates to a rail-type chain composed of iron rods in the form, that is, replaced by dike (2) -shaped steel (2,3). Holes (2), ie parallel planes (2), facing each other of the dichro-shaped steel are drilled at regular intervals, and the rollers (4) and the pins (5) are inserted into the holes and attached to the holes as in the existing chain. On the other hand, the site | part 3 which can be called the intermediate | middle surface part 3 is comprised by providing the screw hole 6 at regular intervals so that it may be combined and used with various construction materials. The manufacturing method is relatively simple, and the installation and maintenance is convenient. It is especially useful for horizontal curtain device materials for greenhouse insulation.
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