
Plastic Piping Systems - Mechanical Joints Between Fittings And Pressure Pipes - Test Method For Leaktightness Under Negative Pressure (iso/dis 3459:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Plastic Piping Systems - Mechanical Joints Between Fittings And Pressure Pipes - Test Method For Leaktightness Under Negative Pressure (iso/dis 3459:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频