Home / Standards / GB/T 18024.4-2000 GB/T 18024.4-2000 Abolished Graphical symbolsfor use in technical documentation of coal mine machinery--Graphical symbols for underground haulage machinery 煤矿机械技术文件用图形符号 井下运输机械图形符号 Standard Type GBT ICS 01.080.20 CCS D04 Status 废止 Issue Date 2000-03-16 Implementation 2000-12-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A