铜        335,800     118,450       35.27
  铝      2,139,575     652,900       30.52
  铅        195,950      44,450       22.68
  镍        371,712     125,640       33.80
  锡          3,715         915       24.63
  锌        428,875      95,000       22.15
铝合金       13,200         360        2.73