Methodology
Why the same figure differs between suppliers comes down to four things: the definition, the formula, how it is measured, and who is speaking. This section lays out the arithmetic behind each metric.
| Metric | Definition | Unit |
|---|---|---|
| Monthly capacity | Conforming units deliverable within one month. It is not the theoretical output of the equipment. | units / month |
| Tolerance capability | The tolerance band that can be held in stable batch delivery, not the best single-part result. | mm |
| Price basis | A quote on one drawing must be broken into nine comparable items. The total on its own means nothing. | RMB / unit |
| Lead time | Time from order and drawing confirmation to dispatch, queueing included, excluding customer-side delays. | days |
Methodology pages are the first thing written here and the hardest part to copy. Numbers can be lifted. The formula and the on-site collection method cannot.