please suggest we transport details of train or bus to travel from pudong to yiwu..?

There are many direct rail available between shanghai and yiwu. You need to transfer from pudong airport to Shanghai south or shanghai hongqiao first and then go for yiwu by rail. There are also bus available directly from pudong. but very few a day. The online says 8:50, 11:30, 14:10 and 17:10 available and would need about 4 hours and 30min. You can check this with the airport as well.