The next two or three days can be spent taking the train each day to Yiwu, to visit the International Trade Market.
Here's what Wiki says abut the International Trade market:
If you're serious about doing business here, I would recommend going with a translator/guide. You should arrange this in Hangzhou. Try at Mingtown Youth Hostel, or at any large hotel, which may have a travel desk. Or else ask at an official tourist office in Hangzhou.
It will be less essential to book your train tickets in advance for this daily trip, as you will just be wanting to buy a seat on what is a one-hour journey, but if you wish, you could still book them through China DIY Travel (http://www.china-diy-travel.com/en) before you come. Alternatively, staff at Mingtown Youth Hostel should be able to help. make sure you buy tickets on a D-class train. They are the fastest ones running between Hangzhou and Yiwu. Other trains can take two hours or more.
Train tickets cost around ¥40-50 per seat.
Morning D-class trains leave Hangzhou at the following times:
7.05am, 8.05am, 8.20am, 8.53am, 10.10am, 10.12am & 12.39pm
Coming back in the afternoon, D-class trains leave Yiwu at the following times:
12.21pm, 12.38pm, 1.02pm, 5.09pm, 5.17pm, 5.22pm, 5.43pm, 6.35pm & 7.26pm
The Chinese name for the trade market is:
义乌国际商贸城 (Yiwu Guoji Shangmao Cheng).
It's about 10km from Yiwu Train Station, so about ¥30 in a taxi. Alternatively, buses 801, 804 & 805 link the train station with the market.
Food options are slim here, so you might want to bring some food of your own for lunch. There's a large Carefour supermarket near Mingtown Youth Hostel in Hangzhou where you can pick up food supplies. Its address is: 135 Yan'an Lu (延安路135号). The Chinese for Carefour is: Jia Le Fu (家乐福).
For evening meals in Hangzhou, try the following:
Green Tea Restaurant (250 Jiefang Lu)
Jiefang Lu is the road that links Hangzhou Train Station with West Lake, and this popular restaurant is at the lake end of the road. it does a great range of local specialities, including a delicious eggplant claypot dish. has an English menu. It's walking distance from the two hotels I've recommended. Walk north, with the lake on your left until you reach Jiefang Lu.
Grandma's Kitchen (3 Hubin Lu)
A stone's throw from Green Tea Restaurant, this is another very popular local chain, serving up Hangzhou specialities in a clean, modern environment. Also has an English menu.
Louwailou Restaurant (30 Gushan Lu, Gushan Island)
Hangzhou's most famous restaurant, this place was founded in 1838 and has a choice location on Gushan Island, which itself sits at the northern end of West Lake, and is accessed via Bai Causeway. Also has an English menu.
None of the three restaurants specialises in vegetarian food, but each does plenty of vegie dishes.
"women bu chi rou" (我不吃肉) - we don't eat meat.
"shenme rou, women dou bu chi" (什么肉我都不吃) - we don't eat any type of meat at all.