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Respiratory protective devices: threads for facepieces. Specification for centre thread connection.
STANDARD published on 28.9.1990
Designation standards: BS 7156-2:1990
Note: WITHDRAWN
Publication date standards: 28.9.1990
SKU: NS-76225
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Category: Technical standards BS
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