
INDUSTRIAL VALVES - TESTING OF METALLIC VALVES - PART 1: PRESSURE TESTS, TEST PROCEDURES AND ACCEPTANCE CRITERIA - MANDATORY REQUIREMENTS
出版:Comite Europeen de Normalisation

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INDUSTRIAL VALVES - TESTING OF METALLIC VALVES - PART 1: PRESSURE TESTS, TEST PROCEDURES AND ACCEPTANCE CRITERIA - MANDATORY REQUIREMENTS
出版:Comite Europeen de Normalisation
专家解读视频