Abstract / scope
Valves are identified by a four-character code (two letters plus two digits), valve components by a three-character code (one letter plus two digits).
Valves pour pneumatiques sans chambre et valves pour chambres à air — Système d'identification des valves et de leurs composants
Valves are identified by a four-character code (two letters plus two digits), valve components by a three-character code (one letter plus two digits).