| 摘要 |
A grating for a catch basin is disclosed. The grating is formed as a hollow monolithic body from plastic, having a top bearing plate, a peripheral rim, a peripheral bearing shoulder extending inwardly from the rim forming an internal recess, a peripheral downwardly extending skirt, a peripheral base extending inwardly from the skirt, and a peripheral inner wall extending upwardly from the base to the top plate. The top bearing plate has a plurality of slits formed by spaced apart hollow bars. An integral hollow rib in the form of a cross beam extends beneath the top plate. A metal reinforcing plate may be positioned in the cross beam.
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