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Database: 189760 (18 Oct 2025)
GB 3609.1-1983
Chinese Standard: 'GB 3609.1-1983'
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Related Standard
GB 3609.1-1983
English
199
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Days<=2
Welding goggles and mask
GB 3609.1-1983
Obsolete
GB 3609.1-1983
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