It sounds like a training centre or agency which does ring alarm bells.

Email: gzss88@vip.163.com Skype: Mike622811 Tele: 0086-13829788567, Office: 0086-20-3866203

Call him and ask things like:

What kind of visa will you provide me with? If it's anything other than a Z visa, run...

Are my vacation periods paid?

Also, listen to his level of spoken English. If it's really bad, he's purely a ruthless businessman with no knowledge of teaching skills whatsoever. Not the kind of person that you'd want to be evaluating your performance as teacher, right?