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Draft Pren Iso 9606 1
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DRAFT prEN ISO 9606-1 - research.irantvto.ir
www.research.irantvto.irEUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM DRAFT prEN ISO 9606-1 November 2000 ICS English version Approval testing of welders - Fusion welding - Part 1: Steels