Dear Sir/Madam,
  We hereby officially invite the following delegation of BBBLearning to visit our school in China, for further business discussion and business cooperation.
  Delegation Member:
  Full name: AAA
  Gender: Male DOB: May 30, 1972
  Expiry Date: 19 Dec 20xx Passport number: 
  Visiting Time:23rd September 20xx to 22nd September 20xx
  All expenses arose by him in China (accommodation fee, air/land transpiration ticket fee, life insurance fee, etc.) are to be borne by himself.
  As business cooperation needs frequent talks and visits, we are so much appreciated if your esteemed embassy could issue the one year multi-entry visa to the above mentioned person at sight of this
  letter.
  Yours faithfully,
  Dr. CCC