Being the printed circuit board and the electric product, and the electric product which is offered to

摘要

PROBLEM TO BE SOLVED: To provide a printed board on which parts are mounted or electric product in which whether it contains lead or not is easily distinguished, and a recycling method of the wastes thereof.;SOLUTION: To a housing of this printed board or electric product, a distinguishing mark showing "containing no lead" is attached. Further, in a recycling step, by the distinguishing mark, printed boards or electric products which contain lead and that which contain no lead are distinguished and sorted.;COPYRIGHT: (C)2007,JPO&INPIT