a chain fire of a carbon chain with a division (p) made of a bar of diameter (d) with two arched parts and two straight sections, with a sliding sheath detachable on straight sections of cells, where the removable slip cover consists of two half -assemblies joined together within a cell, the half -assembling (5) has at least one performance in the part in contact with the straight section (3) of the cell selected in the half -assembling,where the presence and selection of semi -enclosures (5) on simple sections (3 and 4) of the cells form the formative connections. The chain of fire of a carbon chain with a division (p) made of a bar of diameter (d) in which two arc parts and two straight sections with a slip on straight sections of the cell are distinguished, that the solid sliding fittings in the form of an inner diameter semitube (d) are permanently attached to the outer part of the straight sections (3 and 4) of the cell with the grooves made before heat treatment of the chain.
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