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Specification of basic requirements for as well physical characteristics as workmanship, of the steel grades used and heat treatment of component parts, excluding rivets, screws and parts manufactured of material grade M.
Cycle de vie
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ʰééԳ
ԲԳܱéϲʿ 7151:1983
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Actuellement
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Révisée par
ʳܲéϲʿ 7151:2024
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