Tough MIXED NEW ALUMINUM ALLOY CLIPPINGS AND SOLIDS
Shall consist of new, clean, uncoated and unpainted aluminum scrap of two or more alloys with a minimum thickness of .015" (.38mm) and to be free of hair wire,
wire screen, dirt and other non-metallic items. Oil and grease not to total more than 1%. Also free from punchings less than 1/2" (1.27 cm) in size.