The present invention relates to a rail-type chain using a non-eupjak steel, in detail, unlike the existing chain is connected by many rings of peanut-shaped (b) flat iron (2), Ni-eun is made by inserting rail-type chains (2, 3, 4, 6) formed by replacing them with iron bars (2) of the shape-shaped steel (5). It relates to a horizontal rail chain used. The protrusions (3) are formed at regular intervals, and as a whole, the needle (b) shaped steel (2) and the needles (b) are drilled at regular intervals in the shape of the needle (b) and the rollers are similar to the general chain. (4) rail-shaped bar chains (2, 3, 4, 6), ie horizontal rail chains (2, 3, 4, 6), which are constructed by combining (4) The bar is mainly used in the greenhouse 40 thermal curtain opening and closing device 20, and is expected to be popularized as a convenient and effective device for installation and repair.
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