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Specification for aircraft material. ´20´ carbon steel (suitable for welding) (25/35 tonf/sq in: maximum size 6 inches diameter or minor sectional dimension).
STANDARD published on 31.1.1964
Designation standards: BS 5S21:1964
Note: WITHDRAWN
Publication date standards: 31.1.1964
SKU: NS-72717
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: British technical standard
Category: Technical standards BS
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