Product
Price
Average price
Fluctuation
Date
1# copper
May 16
Premium /discount
(discount )100-(equal)
-50
-25
10:30
A00aluminum
16580-16610
16595
0
May 13
1# lead
15800-16000
15900
0# zinc
16500-16600
16550
150
1# tin
210500-215000
212750
-500
1# nickel
183500-184500
184000