zerox and binding business is type of service . you can choose composition for trading , manufacturing, and resturent . other than this you can not opt composition scheme.
why it is counted as service I don't understand....we don't do anything on their paper..we make something new as good as manufacture from sample which they have brought...hence lot of input cost like paper..labour ink etc...so why not manufacture.....
if you see the definition of manufacturing it is the nature of raw material should be changed otherwise will be called trader. in your case niether it will be trader or manufacturing as per my opinion . let's take other opnion too.