Ref NoSWCC/PHO/COL/111
TitleInternational collieries: photograph of two miners demonstrating a technique of hydraulic coal cutting at Yangehuan mine, Shansi Province, China
DescriptionThe technique enabled the labour force to be reduced by half and increased output by two and a half times.
Datec 1970
SubjectCoal mining
Mechanisation
Underground
Physical DescriptionBlack and white reprint
Extent1 photograph [215mm x 73mm]
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