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Классная штука))
Спасибо.)
Класс!
What’s the black stuff that got painted on
? I’d like to know too 😊
It's a lubricant to facilitate drawing and stranding. If this lubricant is not fully removed(with vinegar+salt or lemon juice+salt), it can leach out during annealing(heating), causing the black streaks.
What was that you took the wire from?
Классная штука))
Спасибо.)
Класс!
What’s the black stuff that got painted on
? I’d like to know too 😊
It's a lubricant to facilitate drawing and stranding. If this lubricant is not fully removed(with vinegar+salt or lemon juice+salt), it can leach out during annealing(heating), causing the black streaks.
What was that you took the wire from?