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住房和城乡建设部备案号：115970-2021DB重庆市工程建设标准DBJSO.厅－395-2021导光管采光系统应用技术标准Technicalstandardforapplication...
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ICS91.140.10CCSP46中国城镇供热协会标准CDHAT/CDHA506-2022区域供冷系统设计标准Designstandardfordistrictcoolingsystem2022-06-20发布20...
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ICS13.100CCSE09s中华人民共和国石油天然气行业标准SYff7669-2022气溶胶灭火系统技术规范Specificationsofaerosolfire-extinguishingsystem...
