铸造铜合金: CAC101 CAC102 CAC103 CAC201 CAC202 CAC203 CAC301 CAC302 CAC303 CAC304 CAC401 CAC402 CAC403 CAC406 CAC407 CAC502A CAC502B CAC503A CAC503B CAC602 CAC603 CAC604 CAC605 CAC701 CAC702 CAC703 CAC704 CAC801 CAC802 CAC803 CAC804 CAC901 CAC902 CAC903B CAC911