The present invention relates to an assembly-type buoyant body. According to the present invention, the assembly-type buoyant body comprises: upper and lower bodies which have a plurality of upper and lower joining grooves, formed at intervals along a circumferential side, and also have wire members inserted to have portions located in the upper and lower joining grooves therein; a middle body which is arranged between the upper body and the lower body and has a plurality of middle joining grooves corresponding to the upper and lower joining grooves along a circumferential side; upper and lower joining parts which are inserted in through-holes formed in each predetermined location of the upper, lower and middle bodies and joined; and joint members which have end portions, inserted in the upper and lower joining grooves, and are joined to the wire members located in the upper and lower joining grooves.;COPYRIGHT KIPO 2017
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