ICS03.100.50CCSA9041河南省地方标准DB41/T2647—2024电梯维保作业风险点排查指南2024-03-12发布2024-06-11实施河南省市场监督管理局发布DB41/T2647—2024I目次前言.................................................................................II1范围...............................................................................12规范性引用文件.........................