GB/T 15558.5-2023燃气用埋地聚乙烯(PE)管道系统第5部分:系统适用性国家标准
英文:Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 5:Fitness for purpose of the system GB/T ...
英文:Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 5:Fitness for purpose of the system GB/T ...