Shall consist of clean, uncorroded aluminum borings
and turnings of two or more alloys and subject to
deductions for fines in excess of 3% through a 20
mesh screen and dirt, free iron, oil, moisture and all
other non-metallic items.
Material containing iron in
excess of 10% and/or free magnesium or stainless
steel or containing highly flammable cutting compounds
will not constitute good delivery.
To avoid dispute,
material should be sold on basis of definite
maximum zinc, tin and magnesium content.
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