
Pipe Classes For Process Plants - Part 5: Technical Delivery Conditions For Tube Parts - Reinforced Nozzles
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
Pipe Classes For Process Plants - Part 5: Technical Delivery Conditions For Tube Parts - Reinforced Nozzles
出版:German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频