ASTM F2905 F2905M-22 石油和天然气生产用交联聚乙烯(PEX)管线管标准规范.pdf文档页数:10文档大小:10.82MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the D
ASTM F2648 F2648M-20 2至60英寸[50至1500 mm]环形波纹型墙面聚乙烯(PE)用于土地排水应用的管道和配件的标准规格.pdf文档页数:8文档大小:3.72MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on s
ASTM F2785-20e1 聚酰胺12气体压力管 管道和管件的标准规范.pdf文档页数:12文档大小:6.73MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Princ
ASTM F2905 F2905M-20a 石油和天然气生产用交联聚乙烯(PEX)管线管的标准规范.pdf文档页数:10文档大小:4.95MB文档格式:pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the