Hi im coming to China in April.what kind of clothes should i bring.

T shirts and thick coats are enough if you plan to north part of China, while for the southern part of China, thin coats as well as T-shirts are OK.
For shopping, if you want to buy clothes in wholesale, Guangzhou is the best place. If you want to buy eletronics , you need go to Shenzhen. What kind of articles do you want to buy?