You’re both correct. In the launch ceremonies of both Liaoning and Shandong they definitely called them “Carrier 001” and “Carrier 002”. So Liaoning is Carrier 001 and CV-16. Shandong on the other hand is Carrier 02 and CV-17. But one thing for sure, PLAN has never called either carriers “Type-XXX”."16" and "17" have been painted on the actual carriers of "Liaoning" and "Shangdong", respectively. So the official designation should be CV-16 and CV-17.