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ISO 939 2021 Spices and condiments — Determination of moisture content.pdf
ISO 21951 2024 Coated abrasives Plain discs with holes for dust extraction.pdf
ISO 16945 2014 Corrugating medium — Determination of the edge crush resistance after laboratory fluting.pdf
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GB-T 43652-2024 城市和社区可持续发展 韧性城市指标.pdf
GB-T 8647.8-2006 镍化学分析方法 硫量的测定 高频感应炉燃烧红外吸收法.pdf
GB-T 15452-2009 工业循环冷却水中钙、镁离子的测定 EDTA滴定法.pdf
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GB-T 20372-2006 花椰菜 冷藏和冷藏运输指南.pdf
GB-T 4889-2008 数据的统计处理和解释 正态分布均值和方差的估计与检验.pdf