
Gas Supply Systems - Pipelines For Maximum Operating Pressure Up To And Including 16 Bar - Part 4: Specific Functional Requirements For Ductile Cast Iron (Mop Up To And Including 8 Bar)
出版:Nederlands Normalisatie Instituut

专家解读视频
Gas Supply Systems - Pipelines For Maximum Operating Pressure Up To And Including 16 Bar - Part 4: Specific Functional Requirements For Ductile Cast Iron (Mop Up To And Including 8 Bar)
出版:Nederlands Normalisatie Instituut
专家解读视频