Grating material for trench covers

Abstract

This article is intended for use as a structural material for drainage ditch covers laid in road gutters and the like. A drainage ditch cover can be constructed using multiple of these articles arranged in parallel and multiple connecting pipes that pass through them. In such a drainage ditch cover, the connecting pipes inserted through holes on the sides of the article can be compressed and deformed to fix them in place. Furthermore, a non-slip filler can be filled into the grooves formed on the top of the article.

Images