caustic soda "touches" anodized surface, but not painted or laser burned. So that's why logo still exists, I've done it with some parts and I'm pretty sure that this is how it's made.
@Shl started
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caustic soda "touches" anodized surface, but not painted or laser burned. So that's why logo still exists, I've done it with some parts and I'm pretty sure that this is how it's made.