GB/T 42334.1-2023城市轨道交通运营安全评估规范第1部分:地铁和轻轨国家标准
英文:Specification for operational safety assessment of urban rail transit—Part 1:Metro and light rail GB/T 42334.1-2023介绍...
英文:Specification for operational safety assessment of urban rail transit—Part 1:Metro and light rail GB/T 42334.1-2023介绍...
英文:General technical requirements of polyethylene barrier GB/T 34847-2017介绍: 国家标准《聚乙烯隔离墩通用技术条件》由TC48(全国塑料制品标准化技术委员会)归口上报...