
Petroleum And Natural Gas Industries - External Coatings For Buried Or Submerged Pipelines Used In Pipeline Transportation Systems - Part 5: External Concrete Coatings (Iso 21809-5:2017)
出版:Asociacion Espanola de Normalizacion

专家解读视频
2018 [03/01/2018]2011 [07/09/2011]
EN ISO 21809-5:2017 - Identical
EN ISO 21809-5 : 2017 - Identical
ISO 21809-5 : 2017 - Identical
EN ISO 21809-5 : 2017 - Identical