Cyfernod / Ref NoCP64/27
Teitl / TitleMan operating the dual concentrates filter
Ddisgrifiad / DescriptionThe dark material is lead sulphide (galena) and the light is zinc sulphide.
Dyddiad / Daten.d.
Graddau / Extent1 item
Lefel / LevelItem
Ddelweddau / Image

28\733ee0-2d92-4b42-8736-890dde6bbc6e.jpg

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