Dear Suhas
Very much u can send consumables to jobworker under job work challan, there is no restrictions. the consumable as name suggested will be consumed and may or may not be discernible in final product.
for example raw rubber along with liquid consumable is sent to job work for convertinbg in to finished product. in this case consumable can not be return/even indentify in finished product.
please note that when you have file manufacturing process with department, in which all these Raw materal and major consumables are shown.
One important thing to note is job worker as well as your company have proper record for store which show that how much qty receive/ consume /good retruen etc.
hence there is no proble at all this practice is prevalent in many insustries including in exapmle whicj i have given
Regards,