Product

Price

Average price

Fluctuation

Date

1# copper

2011-5-11

Premium/ discount

(discount )50-(premium)50

0

-175

10:30

A00aluminum

16550-16570

16560

75

2011-5-10

1# lead

16000-16100

16050

50

2011-5-11

0# zinc

16500-16600

16550

100

2011-5-11

1# tin

212500-216000

214250

0

2011-5-11

1# nickel

188000-189000

188500

250

2011-5-11