Canterbury Corporation has identified the following activities in its manufacturing process. Indicate whether each activity is valueadded or non$-$value$-$added.

$\backslash$table$[[$Product design research,$],[$Materials handling,$],[$Machining$,],[$Assembly of components,$],[$Finished goods inventory storage,$],[$Rework after a quality inspection,$],[$Painting end product,$],[$Raw materials inventory storage,$]]$