PLASTIC TANK METHOD AND SYSTEM FOR WELDING PALSTIC TANK

摘要

A body having a hollow shape and having a through hole at one side thereof; A joining part formed in a columnar shape protruding outward from the rim of the through hole of the body and having a flange part protruding along the periphery and composed of a grip part to the body side and a fused part to the opposite side of the body around the flange part; And a part in which a columnar coupling part is protruded and an end of the coupling part is fused with the fusion part of the coupling part to be coupled to the body.