Hi am a bit confused about the details needed for a working visa

The requirements for China work visa application:
Original Visa Notice with official seal and authorized signature from an authorized unit in China
Employment permit issued by relevant bureau in China
Alien physical examination record (must be attested at court)
Photocopy and original passport valid for more than six months and with at least two blank pages
A completed visa application form V.2011A with one white background passport-size photo
A supplementary completed visa application form V.2011B

The first two documents should be sent by your employer in China. The bank statement is not required, you don't need to answer all the questions on the form, just fill N/A for the item not suitable for you.