铜        209,875      39,075       18.62
  铝      2,799,550     757,200       27.05
  铅        200,550      95,950       47.84
  镍        437,442     160,722       36.74
  锡          4,095         665       16.24
  锌        499,450      89,825       17.98
铝合金       15,600          20        0.13