Graphical symbols for use in technical documentation of coal mine machinery--Graphical symbols for machinery of compressed-air,ventilation and water drainage
基本信息
标准号:
GB/T 18024.7-2000
名称:
煤矿机械技术文件用图形符号 压气、通风及排水机械图形符号
英文名称:
Graphical symbols for use in technical documentation of coal mine machinery--Graphical symbols for machinery of compressed-air,ventilation and water drainage