How to get social security and social security cards?

Those documents can be divided into the following four situations: 1. If the applicant handles it himself, please hold the original valid identity certificate. 2. If the applicant is a minor, it is necessary to provide the original and photocopy of the applicant's valid ID card or household registration book, and the original and photocopy of the guardian's valid ID card. 3. If the applicant applies for agency, it is required to provide the original ID cards of both parties, a copy of the agent's ID card, a letter of introduction or power of attorney from the company, and a recent electronic photo of the applicant with a color of 44 1 (height) ×358 (width) pixels on a white background. 4. If the applicant applies for the agency of immediate family members, it is required to provide the original valid ID cards and household registration books of both parties, a recent electronic photo of the applicant, with a white background color of 44 1 (height) ×358 (width) and proof of the marital status of the spouse.