Suzhou to Hangzhou by bus (where is the bus terminal in Hangzhou?)

The buses from SZ will reach Hangzhou Central Bus Station and Hangzhou North Bus station. Most of the buses will reach the north bus station. It is suggested to contact your friend for asking.

Which specific place do you stay in Yuquan area? Generally speaking, you friend can find the bus line 15 outside the north bus station and take this line to reach Zhe Da Lu Station (Zhejiang University Road Station). Then walk to your position.