YunFanLabs
Product support
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01 / Help us help faster
Product, device model, OS version, and app version.
What you did, what you expected, and what happened instead.
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02 / What it is for
An offline metal and machinist calculator for weight, units, fractions, tap drills, threads, materials, job records, and guarded export formats.
Results are estimates. Verify critical work against standards, manufacturer data, and qualified professionals.