splices (at least where I work) are typically only 2-3m long - if I had to guess I'd say it's being stripped back to the core for "retreading" with a new top cover.
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In America we just call it - "The Wave"
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I can name that tune in three notes...
It's "The Workin' Man's Blues"
I hope that the metal is cast iron, cause if it's not, that "tune" is going to last a long time.
Or maybe this is the Chinese version of hard labour
trying top make a new sword in the stone story....
A mystery de-manufacturing process? Given the large electromagnet and pile of scrap (and apparently more items similar to what they're working on back by the wall) I'd bet it's cast iron and they're counting on its brittle nature to split the metal apart after running an angle grinder around the outside. Nevertheless: "Silver Bells" is my song title :)
Edit: It may not sound exactly like Silver Bells, but hey, it's in Chinese.
I'm sorry I don't know the correct term for this... is the thing they are breaking the ass-weight for a forklift or loader?
It looks like they are trying to split it, from context I assume their processor won't take anything that big. It's bigger than a cubic meter, so >~15,000 pounds easy.
Recycling is a weird business.
It's a modern Noh ensemble