GB/T 24421.4-2023服务业组织标准化工作指南第4部分:标准实施及评价国家标准
英文:Guidelines for standardization of organizations in service sector—Part 4:Standard actualization and appraise GB/T 244...
英文:Guidelines for standardization of organizations in service sector—Part 4:Standard actualization and appraise GB/T 244...