JTT 380-1998 交通工业产品分类与代码.pdfVIP

中华人民共和国交通行业标准 JT/T 380一1998 m o c 交通工业产品分类与代码 . Classification and codes of the industrial w x products for communications f z b w. w w 1998-09-09发布 1999-02-01实施 中华人民共和国交通部 发布 目 次 前言·····，··················。·····································“·····”···········································…… 1范围···········，······································································……，’’····················…… 2 引用标准 ············································································”。·······················…… 3 编制原则····························································································……’··…… 4 编码方法···························································”··································。·····…… 5 代码结构··。················································”··················································一 6 交通工业产品代码··································”··········································。，········…… m o c w. x f z