Record

Ref No	SWCC/PHO/COL/111
Title	International collieries: photograph of two miners demonstrating a technique of hydraulic coal cutting at Yangehuan mine, Shansi Province, China
Description	The technique enabled the labour force to be reduced by half and increased output by two and a half times.
Date	c 1970
Subject	Coal mining
	Mechanisation
	Underground
Physical Description	Black and white reprint
Extent	1 photograph [215mm x 73mm]

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