Hello, Andrew.
Do you mean a city in Zhejiang? I guess it is not likely to buy the tickets outside Shanghai. You can have a try anyway. There are many trains from Shanghai to Jinhua, starting from Shanghai Railway Station and Shanghai South Railway Station. I suggest you buy the tickets in advance at either railway station or tickets outlets.

Hi Parker,

Thanks for reply.
Yes. Jinhua is in Zhejiang province. I need to travel around some China area and will need to ticket in advance. Can I buy the ticket at Shanghai Station for the itinerary as below :

Jinhua to Hangzhou

I need to buy it in advance but I am not sure can they sell this ticket at Shanghai