The psychological test of 3504 selecting talents is cross-searched with the psychological test service of the seventh edition and the previous edition of 4203.

3508 vending machine rental and the seventh edition and the previous edition of 4227 vending machine rental, vending machine rental cross search

3802 provides global computer network user access service, database access service and cross search with version 8 and previous version 4220, and provides instant connection service for exchanging data between computer users.