Product
Lowest
Highest
Average price
Fluctuation
Update
Copper
71350
71500
71425
↓-75
2011-4-15
Copper premium/discount
50
120
85
↑35
Aluminum
16570
16610
16590
↑20
Aluminum premium/discount
-15
25
5
Zinc
17950
18100
18025
0
Zinc premium/discount
-370
-220
-295
↑105
Nickel
195500
197000
196250
↑1000
Tin
210500
213500
212000
Lead
17300
17500
17400