ISO 6305-3:1983 EN 2cbc6de2
Railway components — Technical delivery requirements — Part 3: Steel sleepers
现行
发布日期 :
1983-10-01
实施日期 :
ISO 6305-1:1981 EN 6ddf6ecd
Railway components — Technical delivery requirements — Part 1: Rolled steel fishplates
废止
发布日期 :
1981-09-01
实施日期 :