Blog posts : "General"

Moving back as far as the Roman times, in ancient Rome Man has started using stone to cover up drain covers.

The layman term for drain cover (grate) is manhole cover. Say "manhole cover" and pictures of spies/heros using the underground sewage system popping out of manhole cover in grating products appear.
Historically from the time that Man invented the sewage system since the Roman Times to drain water …

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