Path: 1-pc prototype → tens to hundreds. Same STEP, same finish, same inspection ticks: a repeat is quicker. Change size, anodize, or add FAI and we re-itemize.
Preview still needs no login. Engineering 12h UTC+8. Lead time remains production + freight; batch size does not erase freight days.
Implants cannot sneak in as a “prototype.” No invented ISO as a production license.
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