From my experience the highest quality material stays in the USA, extrusions, clips, alloys, wheels, bare bright, #1 copper, red brass and even some sheet. This is because these are low labor intensive materials and can easily be processed. The standards for US mills are very strict, so the so-so sheet produced and iffy #1 copper will be sent overseas. Electric motors, wire (except premium no attachment #1 wire-which is suprisingly a difficult package to produce when you're talking 40-42k lbs). Yellow brass-mainly because zinc and steel contaminates on 40 percent of brass bought and sold through yards. China is the largest consumer, but India and surprisingly Pakistan have been emerging as larger consumers I've noticed in the past year.
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