I'm assuming all this metal is going to be recycled and reused.
Metal is like that. Steel, especially, since its strength remains unchanged after being melted down.
In Manhattan, believe it or not, not all the office buildings recycle paper. The recycling bins might be there, office workers may dutifully separate their trash, but if the maintenance company for the building doesn't support recycling, all the waste will be mixed up again and placed at the curb.
In the last couple of offices where I've worked, this has been the case. It didn't help to lobby, plead with or bribe the cleaning crew.
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