High and New Technology Industrial Development Zone, Zhengzhou, China
historic mining equipment steam
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historic mining equipment steam

In 1903 one contractor at Chisholm,Minn., was using 60- and 70-ton railroad-typesteamshovels with 2½- and 3-cubic-yard dippers for loading stripping into narrow-gage, 4-cubic-yard wooden dump cars hauled by saddleback, 8- to 18-tonsteamlocomotives; ore was loaded into railroad cars hauled by 45- to 70-ton, six-wheel, switching-type locomotives.

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