Visa Length (Tourist)

Hello,
I recently traveled to Guangzhou and Hunan over a 2 week period and have decided to go back and stay with friends.
I am have some friends in Changsha who I will be staying with for most of my stay. However, this time I would like to see more of the country with possible train trips to Hong Kong, Shanghai and Beijing.

My question is; am I able to get a multi-entry which will allow me to stay for 2-3 months as a tourist?

When I've tried to seek this information from I can only find answers from those in the US. So I wanted to make sure that info relates to me, before submitting all my paper work. I've noticed L type tend to only allow stays for up to 30 days.

Thanks in advance for your help!
Regards,
Rob