Final answer:
A flexible hose connector on a cargo tank must be permanently marked with the manufacturer's information, date of manufacture, maximum working pressure, maximum temperature limitation, recommended tightness of the coupling, and other required information.
Step-by-step explanation:
The flexible hose connector on a cargo tank must be permanently marked with the following information:
- The name or trademark of the manufacturer or distributor
 - Date of manufacture or date of latest inspection
 - Maximum working pressure
 - Maximum temperature limitation
 - Manufacturer's recommended tightness of the coupling
 - Other information as required by applicable regulations or standards