you can try to submit your visa application to Chinese embassy with following documents:
1. Your original passport valid for at least 6 months with enough blank visa pages.
2. Application form for China visa with a passport-sized photo stuck to it.
3. If for business, you need invitation letters from China both the inviter company and official China government.
4. Other requirements visa officers deem necessary. like bank statements, itinerary, hotel bookings, and so on.