Prefer STEP/STP. We also take STL, IGES, SolidWorks, Parasolid, DXF/DWG, and PDF, ≤80 MB each. STL is fine for shape; it is a poor single source for tolerances and threads.
State mm or inch in the filename or notes. Quantity 1 can quote from STEP. Preview with no login.
Complex DFM: 12h UTC+8. Lead time splits. No implants.
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