铜        247,075      72,100       29.18
  铝      2,152,150     778,300       36.16
  铅        188,850      31,200       16.52
  镍        366,456     126,570       34.54
  锡          3,085       1,665       53.97
  锌        445,075      74,600       16.76
铝合金       13,680          80        0.58