Seminar (2)

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Welsh Slate Ltd X
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Factory Visit 
 
This tour of the Penrhyn Quarry at Bethesda, Gwynedd will take in the old workings at the North Quarry and current workings at the South Quarry. It will show the slate quarrying process and help y...
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Material type: Factory Visit
Seminar 
 
This seminar aims to provide an understanding of the quality criteria required to specify natural slate as well as practical advice on design.
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Material type: Seminar
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