Requirements for China D visaare are as follows:
1. A valid passport with at least six (6) months of remaining validity as well as a copy of its information page.
2. One completed Visa Application Form for China.
3. One photo glued or stapled on the application form.
4. Residence Approval Certificate issued by the Chinese public security bureau. (You can entrust your relatives within China to apply for this certificate with the said authority.)
anyway, China D visa is very difficult to get.