Pudong Airport — Yiwu (Binwang Bus Center) WHERE BUY TICKET

Oh, i see. Actually, the Binwang Bus Center is Yiwu City Bus Station.

There are direct long-distance buses from the airport to Yiwu.
The ticket service counter is located at the south parking area of buses, 2nd floor of the airport.
It's easy to find.
You can buy the tickets there directly. No need to book in advance.
Hope helpful. :)