铜        237,350      56,425       23.77 
  铝      2,830,750     938,650       33.16 
  铅        188,725      94,075       49.85 
  镍        450,174     177,420       39.41 
  锡          5,980       1,140       19.06 
  锌        480,850      92,075       19.15 
铝合金       15,320          20        0.13