
Pumps - Rotodynamic Pumps - Glandless Circulators - Part 1: General Requirements And Procedures For Testing And Calculation Of Energy Efficiency Index (Eei)
出版:Osterreichisches Normungsinstitut

专家解读视频
Pumps - Rotodynamic Pumps - Glandless Circulators - Part 1: General Requirements And Procedures For Testing And Calculation Of Energy Efficiency Index (Eei)
出版:Osterreichisches Normungsinstitut
专家解读视频