hello, i will be travelling to Beijing on July 5th and staying there perhaps for 4 days.

ill be traveling to Mongolia afterwards overland, and ill be in Mongolia for about 1.5/2 months. ill be returning to Beijing from Mongolia at the beginning of September for my flight to Russia. so my question is, i have a flight to Beijing, a hotel booked for 4 days, a flight out of Beijing for September, passport photo and a Canadian passport. will these documents suffice for a multi entry 6 month Visa?