What's this key for?

Related to What's this key for?: Serial keyTranslations
What's this key for? EN-UKEN-GB-P0014950 EN-USEN-US-P0014950 ES-ESES-ES-P0014950 PT-PTPT-PT-P0014950 → 这把钥匙是开什么锁的？ ZH-CNZH-CN-P0014950