There are usually time restrictions, geographical restrictions, venue restrictions, quantity restrictions, initial return restrictions and other restrictions.
Limited time: refers to sales and distribution within a specific time, and can only be purchased or ordered within this specified time. Some commemorative items sold on special anniversaries will also be called limited time.
Geographical restriction: refers to sales and distribution in a specific area, and cannot be sold elsewhere. Many souvenirs related to tourism and with local characteristics usually adopt this form of restriction.
Venue restriction: refers to the sale and distribution in a specific exhibition venue or performance venue.
Quantity restriction: it is the most common restriction mode, that is, limited edition, which is issued by limiting the quantity. If there is only one, it is called a closed version.
First regression restriction: it is the first release, and the commemorative version of the first regression is usually more meaningful.
Other restrictions: 1. Periodical restrictions usually refer to gifts attached to magazines or specific publications (such as books and periodicals, photo albums, commemorative books, etc.). ), will change according to the content. 2. General sales, usually refers to the mail order service of magazines or publications, which is obtained by filling in the purchase order attached to the magazines and by the specified payment method at the specified time. Subscribing to a complimentary magazine means that you have to send a receipt or reply with a magazine, and you can get a gift or buy goods through certain procedures (usually drawing lots or limiting the number of people).