Letter from friend in China

The invitation letter should include the following items:
(1) Personal information of the applicant, such as name, gender,and date of birth.
(2) Purpose of the visit to China, travel itinerary such as date of entry and exit, places of visit, relationship between the inviter and the applicant, and who will bear the expenses of the applicant in China.
Besides, copies of inviter's ID Card is required if Chinese; Copies of passport information page, valid visa or residence permit in China if foreigner.
Documents needed are your valid passport, application form, photo, return ticket and hotel reservation is necessary. Sometimes, financial guarantees may be required as well if the officers deem it necessary.