2. There are _ _ _ comrades and other _ _ people in our unit who come to your office to deal with _ _ _ things. Please help us.
3. Hereby
salute
5._ _ _ (Seal)
6. Year, month and day
7. This letter of introduction is valid until year month day.
8. Letter of introduction is an applied style for introducing contact matters and one of the styles of applied writing research. It is a letter used by organs, enterprises and institutions to send people to other units to contact with work, understand the situation or participate in various social activities. It has the dual functions of introduction and proof. Using the letter of introduction can let the other party know the identity and purpose of the letter holder, thus gaining the trust and support of the other party.