What's the difference between social insurance in parks and urban areas?

What's the difference between social insurance in parks and urban areas? There are two kinds of social insurance security plans in the park: A and B. Category A includes basic pension, basic medical care, work injury, leisure, maternity and housing security. Class B: including basic old-age care, basic medical care, work injury, leisure and maternity. (It can also be on-site housing security) The security planning of urban social insurance is: basic pension, basic medical care, work injury, unemployment, maternity and housing security. What procedures do you need to go through when the number or name of the insured employees changes? A: The social security contractor of the unit takes the following materials to the middle to handle the information change procedures of the insured employees: (1) The basic information change form of the social insurance (provident fund) insured employees in the park is in triplicate; (2) If the name of the insured employee is changed or the number is not changed due to promotion, the household registration book stamped by the local police station, the original and copy of the unified person before and after the change (computer printing is required, and handwriting is invalid) shall be issued. If the change procedure is handled by the employee himself, he/she and his/her membership card are required.