Certainly,welcome to China.
A majority of trading staff are good at english in China
Never mind, you can speak English with the waitress in Hotel.
The most important thing is that you need to have a plan about the places you want to go, and let your chinese friend write down the place name in Chinese, when you go out for taxi, you just show the scrip to the taxi driver, they will know where you want to go.
In addition, I suggest you to have an detailed investigation about the products you need, and make sure that the place you go will have the exact item you need.
I am a chinese girl, and have an exporting business experience of 5 years. If you need any help, I am glad to give you a hand.
You are welcome to China!!