2. With the social security transfer acceptance letter, go to Fuzhou to handle the pension insurance transfer list.
3. You can go to Chengdu Social Security Bureau for transfer with the bill.
You can ask your family or friends to help you with the formalities in Fuzhou. You should provide the original and photocopy of your ID card, social security card and power of attorney, and sign it with your handprint. The same is true here in Chengdu.
Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.