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agriculture a 110000 ltd agriculture b 110005 animal industry b 110010 agricultural products dealer b+ 110020 farm labor contractor b 110030 fertilizer company b 110040 freshwater commercial fishing mining a 210000 ltd mine related activity b 210010 mining utility a 220000 ltd utility related activity b 220010 drinking water treatment plant b 220020 electric company b 220030 gas company b ... ................
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