
Plastics Piping Systems - Fittings, Valves And Ancillaries - Determination Of Gaseous Flow Rate/pressure Drop Relationships (iso/dis 17778:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

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Plastics Piping Systems - Fittings, Valves And Ancillaries - Determination Of Gaseous Flow Rate/pressure Drop Relationships (iso/dis 17778:2013)
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频