| 摘要 |
A water-penetration green steel grating is provided to prevent inflow of garbage and dirt into a sewage pipe and to prohibit odor from flowing inversely. In a water-penetration green steel grating(1), an aggregate separation preventing member(2) is fixed at the bottom surface of the steel grating positioned at the inner space of a rectangular frame(10) and formed with vertical and horizontal lattice-type partition plates at adequate intervals. A water-penetration aggregate(3) is filled in the space formed between the partition plates. |
