The person who seals and signs the sales contract is considered the guarantor.

Just a signature counts as a guarantor. Having signed indicates that you are clear about what you signed, so it counts as a guarantor.

The legal responsibilities for making guarantees are as follows:

1. General guarantee responsibilities. That is, when the debtor cannot pay off the debt when it is due, the guarantor must bear the responsibility for it, that is, pay off the debt when it is due;

2. Joint and several liability. That is, when the debt reaches the due date, the creditor has the right to require the debtor or guarantor to repay the debt.

"People's Republic of China and Civil Code"

Article 699

If there are two or more guarantors for the same debt, the guarantors shall be The creditor shall bear the guarantee liability according to the guarantee share specified in the guarantee contract; if there is no guarantee share agreed upon, the creditor may request any guarantor to assume the guarantee liability within the scope of its guarantee.

Article 700

After the guarantor assumes the guarantee liability, unless otherwise agreed by the parties, the guarantor shall have the right to recover compensation from the debtor within the scope of the guarantee liability and enjoy the rights of a creditor against the debtor. , but shall not harm the interests of creditors. Article 698.

After the expiration of the main debt performance period, the guarantor of a general guarantee provides the creditor with the true situation of the debtor's property that can be executed. If the creditor abandons or neglects to exercise its rights and the property cannot be executed, the guarantor shall provide the creditor with the real situation. Guarantee liability will no longer be borne within the value of the property available for enforcement.