铜        339,625     122,125       35.96
  铝      2,134,550     648,525       30.38
  铅        184,250      44,450       24.12
  镍        371,712     125,496       33.76
  锡          3,600         920       25.56
  锌        429,050      94,850       22.11
铝合金       13,200         360        2.73