Nature, Količina 100Sir Norman Lockyer Macmillan Journals Limited, 1917 |
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Stran 69
... iron ore were raised and smelted in 1913 , of which slightly above one- third came from abroad . A total of 10.26 million tons of pig iron was produced , representing an average iron content of 42.7 per cent . in the ore . The resources ...
... iron ore were raised and smelted in 1913 , of which slightly above one- third came from abroad . A total of 10.26 million tons of pig iron was produced , representing an average iron content of 42.7 per cent . in the ore . The resources ...
Stran 235
Sir Norman Lockyer. British output of Iron Ore Iron Ore imported into Britain Iron obtained from British Ore Iron obtained from imported Ore 1896 '97 '98 '99 1900 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10 ' II '12 '13 '14 '15 the pre - war ...
Sir Norman Lockyer. British output of Iron Ore Iron Ore imported into Britain Iron obtained from British Ore Iron obtained from imported Ore 1896 '97 '98 '99 1900 '01 '02 '03 '04 '05 '06 '07 '08 '09 '10 ' II '12 '13 '14 '15 the pre - war ...
Stran 447
... iron - ore basins for German industry both during and after the war . Gradu- ally the mask is being dropped in ... iron ore in the Briey basin amounted ( calculated by iron contents ) to 28 per cent . of the total German ore supply ...
... iron - ore basins for German industry both during and after the war . Gradu- ally the mask is being dropped in ... iron ore in the Briey basin amounted ( calculated by iron contents ) to 28 per cent . of the total German ore supply ...
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