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

專家解讀視頻
Gas Supply Systems - Pipelines For Maximum Operating Pressure Up To And Including 16 Bar - Part 4: Specific Functional Recommendations For Ductile Cast Iron With A Mop Of 8 Bar
出版:Nederlands Normalisatie Instituut
專家解讀視頻