To reduce not only the labor and the cost for returning an empty bobbin, but also the need for keeping bobbins for distribution inventory from a coiling process to an uncoiling process of wire.

By providing the bobbin which can be easily disassembled/ assembled at site of the coiling process of the wire and at site of the uncoiling process, the system reduces not only labor and the cost for returning the empty bobbin but also stocks of the bobbins for the so-called distribution inventory.