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加拿大各镍矿1991年产镍189200t,已连续两年下降。1989和1990年的矿镍产量分别为195 600t 和195 000t。最大一次月产量
Nickel 189,200 tons of nickel in Canada in 1991, has declined for two consecutive years. The mineral nickel production in 1989 and 1990 was 195 600 t and 195 000 t, respectively. The largest monthly production