Can national debt be pledged as a certificate of rights? What are the rules?

Of course, according to the Guarantee Law, the following rights can be pledged: (1) bills of exchange, checks, promissory notes, bonds, certificates of deposit, warehouse receipts and bills of lading; (2) Shares and stocks that can be transferred according to law; (3) Trademark exclusive right, patent right and property right in copyright that can be transferred according to law; (4) Other rights that can be pledged according to law. Article 76 Where a bill of exchange, cheque, promissory note, bond, deposit slip, warehouse receipt or bill of lading is pledged, the certificate of title shall be delivered to the pledgee within the time limit stipulated in the contract. The pledge contract shall take effect from the date of delivery of the certificate of rights. Article 77 Where a bill of exchange, cheque, promissory note, bond, deposit slip, warehouse receipt or bill of lading is pledged with a redemption or delivery date, if the redemption or delivery date of the bill of exchange, cheque, promissory note, bond deposit slip, warehouse receipt or bill of lading is earlier than the debt performance period, the pledgee may redeem or deliver the goods before the debt performance period expires. It is also agreed with the pledgor that the redemption price or the delivered goods will be used to pay off the secured creditor's rights in advance or the first payment agreed with the pledgor.