
THERMOPLASTICS MATERIALS FOR PIPES AND FITTINGS FOR PRESSURE APPLICATIONS - CLASSIFICATION, DESIGNATION AND DESIGN COEFFICIENT
出版:Comite Europeen de Normalisation

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THERMOPLASTICS MATERIALS FOR PIPES AND FITTINGS FOR PRESSURE APPLICATIONS - CLASSIFICATION, DESIGNATION AND DESIGN COEFFICIENT
出版:Comite Europeen de Normalisation
专家解读视频