Hi pal! Different schools have different deadlines, so you might want to look into specific schools to see where you're at. Maybe is not too late! Have you worked? If so, what type of experience do you have?
Given your stats, specifically on your GRE math score, and assuming you are coming from a good China school, how about try Rutgers, Northwestern, UC Davis, or Texas A&M? Those should all suit you wonderfully. Hope this all helps, my friend, and feel free to ask anything else on your mind!