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Yielding steel arch support for use in mines. Arched side sections with lower beam. Dimensions
STANDARD published on 9.11.1987
Designation standards: ČSN 442612
Classification mark: 442612
Catalog number: 28463
Publication date standards: 9.11.1987
SKU: NS-128967
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
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