Start handling permeable grating covers and permeable decorative lids Tosk!

Rainwater drainage suppression & barrier-free, plus hygiene issues!
Instead of draining through a steel grating like conventional grates, it drains through the gaps in the gravel.
The gravel is solidified with a special binder (fiber-reinforced synthetic resin) and poured into a metal frame (SS.SUS).
Without filling the gaps between the gravel, it allows water to flow while preventing the flow of debris with a special adhesive property.
"A drainage channel and catch basin cover that prevents debris while allowing only rainwater to pass."
Tosk offers a proposal for creating a livable city by suppressing rainwater!

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