GB-T 42952.1-2023 流体输送用热塑性塑料管材 尺寸和公差 第1部分:公制系列
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ISO 16000-26 2012 Indoor air — Part 26 Sampling strategy for carbon dioxide (CO2).pdf
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ISO 16610-61 2015 Geometrical product specification (GPS) Filtration Part 61 Linear areal filters Gaussian filters.pdf
ISO TR 17252 2019 Fire tests — Applicability of reaction to fire tests to fire modelling and fire safety engineering.pdf
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ISO 603-10 1999 Bonded abrasive products — Dimensions — Part 10 Stones for honing and superfinishings.pdf
GB-T 22132-2008 显微镜 可换目镜的直径.pdf
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GB-T 11547-2008 塑料 耐液体化学试剂性能的测定.pdf
GB-T 13829.8-2004 圆头槽销.pdf
GB-T 1735-2009 色漆和清漆 耐热性的测定.pdf
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GB-T 18961-2012 林业机械 便携式割灌机和割草机 词汇.pdf
GB-T 5271.9-2001 信息技术 词汇 第9部分 数据通信.pdf
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