Notarizing a Mexican marriage certificate

I need to get my Mexican marriage certificate notarized so I can use it in China. I got married in Texcoco, Estado de Mexico. I have a couple of questions: 1) Would I need to go into the Chinese consulate in Mexico City to get it notarized or could I go into the one in Tijuana? 2) Would I need to get my marriage certificate translated into Chinese or could I get it notarized without having it translated?