I'm just wondering how can i get a Z visa?

First, you have to find an employer who is capable of recruiting foreigners. Second, sign a contract and ask your employer to help you apply for the work permit. When you acquire the work permit, you need to leave PRC to apply for the Z type one. After you get the Z type one, you can re-enter PRC again and apply for the temporary resident permit within in one month before the Z type expires.