机械制图用计算机信息交换常用长仿宋字体、代符号 基本集
Common long fangsongti letterings and symbols in mechanical drawings and computer for information interchange--Basic set
标准状态
发布于:1992-02-09
实施于:1992-10-01
已废止
Common long fangsongti letterings and symbols in mechanical drawings and computer for information interchange--Basic set