Product
Price
Average price
Fluctuation
Date
1# copper
May 20
Premium /discount
(premium )380-(premium )450
415
175
10:30
A00aluminum
16590-16620
16605
50
May 19
1# lead
16000-16200
16100
0
0# zinc
16550-16650
16600
-150
1# tin
207500-212000
209750
-500
1# nickel
180000-181500
180750
-4250