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[团体标准] T/CDHA 14-2023 球硅保温预制直埋管道
[团体标准] T/CDHA 13-2023 热力管道用金属波纹管补偿器
[团体标准] T/CDHA 504-2021 长输供热热水管网技术标准
[团体标准] T/CDHA 506-2022 区域供冷系统设计标准