There is no train. From Pudong airport by bus to the railway station (ask for correct bus outside airport). At final stop at train station 8about 50 minuts) you cross the place direction railway station and enter the subway to the bus station (you need to ask someone to find the way in that labirint) It's about a 500m walk...Taxi would need more time. From Bus station about every hour a bus to Huzhou. About a 3 hour ride. From airport you can as well take the fast train to the city and by taxi to the bus station... let the Chinese company send you the description in Chinese to show to drivers.