DB3402∕T 50-2023 少儿艺术培训服务规范VIP

ICS03.080CCSA123402芜湖市地方标准DB3402/T50—2023少儿艺术培训服务规范Specificationforchildrensarttrainingservice2023-12-18发布2024-01-01实施芜湖市市场监督管理局发布DB3402/T50—2023目次前言.................................................................................II1范围...............................................................................32...