maestro@ написал: Обычно пишется Part No, а не s/n.
Все верно Федя говорит.
Quality controls and innovative strength
To be able to maintain this high level of quality, we inspect our tools several times during the production process. Anyone who owns a tool from PB Swiss Tools with a serial number, e.g., a screwdriver with our typical red handle, can trace the inspection date. Internally, we can conduct the following investigations with the serial number:
the individual production steps from incoming to final inspection
the raw material declaration: material, supplier, delivery date, inspection results
Information dating as far back as 1992 can be taken from the database
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