What is the normal size of invitation letter and letter of appointment?

In the traditional "invitation card" and "invitation card", there are mainly three forms: square, rectangle and long. The appearance and size of these products have a certain proportion and size.

Party "invites" and "invites":

Dimensions range from130mm x130mm to150mm x150mm. In foreign countries, supplementary cards (such as route cards, reply cards, project cards, etc. ) are generally added to the card, which can generally reach 100 mmx 100. ?

Rectangular "invitation" and "invitation":

The size ranges from170mmx115mm to 190mmX 128mm, and the size changes in proportion, which accords with the golden section. If there is a secondary card, it should not be too big. ?

Peel off the "invitation" and "invitation":

The size ranges from 210mmx110mm to 250mmX 1 10mm, and the size changes proportionally. The opening mode is only suitable for horizontal and unilateral opening.

Invitation letter is very important in practical writing, and invitation letter for business activities is an important branch of invitation letter, so it is very important to write it well.

The invitation letter for business etiquette activities is a written letter sent by the organizers of business etiquette activities to solemnly invite their partners (investors, material suppliers, marketing channels, transportation service partners, heads of government departments, news media friends, etc.). ) Take part in their ceremonial activities. It embodies the etiquette desire, friendliness and hospitality of the event organizer; It reflects the interpersonal and social relations in business activities. Enterprises can write their own invitations with corporate cultural characteristics according to the purpose of business etiquette activities.