Home / Standards / GB/T 24804-2009 GB/T 24804-2009 Abolished Rules for the improvement of safety of existing lifts 提高在用电梯安全性的规范 Standard Type GBT ICS 91.140.90 CCS Q78 Status 废止 Issue Date 2009-12-15 Implementation 2010-09-01 Responsible Dept 国家标准委 Drafting Unit N/A