Stainless 304 / 316 can be passivated if you tick it. About +1–3 days on production, not on duty. Do not select anodize on 304 / 316.
Quantity 1 can tick passivate. Preview with no login. Engineering confirms the stacked lead tier within 12h UTC+8 on Dongguan business days.
Material CoC is by agreed scope. Lead time = production (including passivate) + freight. No implants. Passivate is not an unpublished system certificate.
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