Can China Mobile bind other people's secondary cards without changing the number?

Yes, 1. Find the location of the main card, go to the local mobile business hall, select the call server in the business hall, and then wait in line. 2. After the queue is over, consult the service staff of the business counter to handle matters related to the secondary card. 3. Show the ID card information bound by the main card number, and inquire whether the card number can enable the secondary card function. 5. Show another card number so that the staff can bind the secondary card and explain the function of the secondary card. 6. After this function is enabled, you can sign the business form to confirm and complete the related business of secondary card binding.