Is there any halal market in Hangzhou ?

Well, as far as I know, there is no such halal market.
Maybe you can find what you want in some large supermarkets in this city, such as Walmart.
One of Walmart is located at 3rd Floor, SZITIC Commercial Center, No.588, Gudun Road.

In addition, several halal restaurants are good choices for you. I know one named as 'Tarim Halal Restaurant' that provides authentic and delicious halal foods. You can try it. It's located at No.175, Hedong Road, Xiacheng District.