GB/T 13663.5-2018给水用聚乙烯(PE)管道系统第5部分:系统适用性国家标准
英文:Polyethylene (PE) piping systems for water supply—Part 5: Fitness for purpose of the system GB/T 13663.5-2018介绍: 国家标准...
英文:Polyethylene (PE) piping systems for water supply—Part 5: Fitness for purpose of the system GB/T 13663.5-2018介绍: 国家标准...