invitation letter
  hello mr.-,
  after such a long business relation we have had, and looking forward to a better and bigger relation betweenour two companies. it is our pleasure to invite and welcome you in china from the 5th of march until the 15th of march to visit our factory, and from the 10th of apr. to 25th apr. to visit the canton fair.
  details of travellers
  name:
  nationality:
  date of birth:
  we not only welcome you, but we will be taking care of you during the whole trip, and please do not hesitate
  in contacting us for any problems or questions.
  we will be waiting for you at the airport on your arrival!!
  best wishes,
  -