I am from Pakistan, I want to marry from Chinese girl

I am Afnan Alam from Karachi Pakistan, I want favor about "marriage", I want to marriage from Chinese girl, she is from Kashgar Xinjiang, so can you tell me procedure of this process,

I made unmarried certificate from union council, then attest from Foreign Affair, today I went to china embassy in Karachi so they deny for attest of my certificate, now what should I do , can you help me