城镇供热预制直埋保温管道技术指标检测方法 GB\T29046-2012
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城镇供热管网结构设计规范 [附条文说明] CJJ105-2005
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制冷空调作业安全技术规范 AQ7004-2007
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生物安全柜 JG170-2005
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可锻铸铁管路连接件 GB\T3287-2011
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水-水热泵机组热力学完善度的计算方法 GB\T29033-2012
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低环境温度空气源热泵（冷水）机组第2部分：户用及类似用途的热泵（冷水）机组 GB\T25127.2-2010
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空调与制冷系统阀件用铜及铜合金无缝管 GB\T26024-2010
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