| 摘要 |
<p>The present invention relates to a rainwater storage tank composed of a composite panel and, more specifically, relates to a composite panel having a connection protrusion and a connection groove on a left side and a right side formed to be curved to compose a cylindrical side wall; and both ends of the storage tank covered by a circular composite panel cover to enable a central shaft to be laid in parallel to a ground surface, and a hole formed in an inner center plate to enable rainwater to be discharged. According to the present invention, the present invention reduces production costs as a reinforcement member and a sealing member of an inside and an outside portion are not required to manufacture the cylindrical storage tank, and work time is reduced as the storage tank can be manufactured with a single welding and a single installation.</p> |
