Product
Price
Average price
Fluctuation
Date
1# copper
May 23
Premium /discount
(premium )600-(premium )700
650
200
10:30
A00aluminum
16560-16590
16575
-30
May 20
1# lead
16000-16200
16100
0
0# zinc
16400-16500
16450
-150
1# tin
207000-212000
209500
-250
1# nickel
178000-179000
178500
-2250