BS 3692 2014 ISO metric precision hexagon bolts, screws and nuts. Specification.pdf文档页数：48文档大小：1.92MB文档格式：pdf BS3692:2014 BSI Standards Publication ISO metric precision hexagon bolts screws and nuts Specification bsi. ..making excellence a...

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...

ASTM F2968 F2968M-20a 气体分配用交联聚乙烯（PEX）管的标准规范.pdf文档页数：11文档大小：5.34MB文档格式：pdf This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on...