Powder of nonferrous metals and their alloys used in manufacturing and sold to manufacturers as unfinished products, and not for painters, decorators, printers and artists; powder of irons and steels used in manufacturing and not for painters, decorators, printers and artists; metal compound powder used in manufacturing and sold to manufacturers as unfinished products, and not for painters, decorators, printers and artists; all of the aforementioned goods not intended for use in connection wi...