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  4. Standard "STN 446250"
WITHDRAWN STN 446250 1.9.1974 preview

STN 446250 (446250)

Mine ventilation. Plastic air ducts, rigid type



STANDARD published on 1.9.1974


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The information about the standard:

Designation standards: STN 446250
Classification mark: 446250
Catalog number: 63533
Note: WITHDRAWN
Publication date standards: 1.9.1974
SKU: NS-498965
Approximate weight : 18 g (0.04 lbs)
Country: Slovak technical standard
Category: Technical standards STN

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ČSN 446250 (18.09.1974)

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