You need to apply for a visa to China from Chinese embassy in Jordan that Embassy in Iraq does not issue visa now. The requirements for tourist visa should be as follows:
1. Your valid & actual passport which must have at least six (6) months of remianing validity with at least one blank visa page in it.
2. One completed Visa Application Form with one passport photo stuck on it.
3. A written explanation for the purpose of visit is required.
4. If necessary, visa officers may require return ticket and hotel booking from China.
If you cannot come personally, you may entrust someone else or a travel/visa agent to come to the visa office.