How to convert rural social security card into social security card?

1: I got a social security card in the countryside, but now the factory can't do it. If the factory directly transfers the money to this card, does this card belong to rural insurance or employee social security?

→ I can't get in at all.

2. Can I cancel this card in rural areas and let the factory handle it again?

→ yes. Or go through the formalities of terminating payment.

I can't find this rural card now. Can I cancel it?

→ Report the loss first, and then handle it.

4. If it can't be cancelled, can it be converted into employee social security? Where should I go to handle it? What is the procedure? → Can't turn.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.