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NYC alone buys about 3,000 manhole covers a year (from the NYT article linked downthread) for just electricity and steam operations (not including sewer, gas, o
by woodruffw 4y ago
NYC alone buys about 3,000 manhole covers a year (from the NYT article linked downthread) for just electricity and steam operations (not including sewer, gas, or water).
Japan has around 14x as many people and is substantially more urbanized, so it's not inconceivable that they run production daily, especially if they're selling to other markets.
- pySSK 4y ago> especially if they're selling to other markets. I would imagine they do that a lot. They seem to have YKK'd the manufacturing of manhole covers and I can't imagine that anyone else could do it better or cheaper. Edit: if anyone didn't get the YKK reference, look at any zipper you own. Chances are it says 'YKK' on it. YKK of Japan has perfected zipper-making and dominates the market.