Construction enclosures are divided into PVC plastic steel enclosures and color steel enclosures, which are currently the most widely used protective safety measures on construction sites. Construction enclosures are surface-treated with galvanized spray coating or galvanized pipes plus plastic pipes, resulting in a long service life. Moreover, their unique connection method ensures a more structure, and in addition, the columns are installed using expansion bolts, allowing the construction enclosures to be reused with higher cost performance.