Type of the domain name : .cn / .com.cn / .net.cn / .org.cn / .gov.cn / .bj.cn
Registration Rules:
1, only English letters (az, not case sensitive), numbers (0-9), and "-" (in conjunction English, that is, in line), can not use spaces and special characters (such as!, $,&,?, Etc.).
2, "-" can not be used at the beginning and end of
3, not the length of more than 63 characters