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U SS R S T A T E ST A N D A R DHIGH-ALLOY STEELS ANDCORROSION-PROOF,HEAT-RESISTINGAND HIGH-TEMPERATURE ALLOYSGRADESG0ST5632-72Official EditionEnglish Version Approved by InterstandardSTANDARDS PUBLISHING HOUSEMoscow-ww一e andard T (n)
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