ISO 15401 2000 Ships and marine technology — Bulk carriers — Construction quality of hull structure
ISO 11047 1998 Soil quality Determination of cadmium chromium cobalt copper lead manganese nickel and zinc Flame and electrothermal atomic absorption spectrometric methods.pdf
ISO 8906 1988 Sawn timber — Test methods — Determination of resistance to local tran.pdf
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ISO 11415 1997 Tools for pressing — Die sets.pdf
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GB-T 1989-1980 信息处理交换用七位编码字符集在9磁道12.7 毫米磁带上的表示方法.pdf
GB-Z 42520-2023 铁矿石X射线荧光光谱分析实验室操作指南.pdf
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GB-T 8828-2003 防老剂 4010NA.pdf
GB-T 25612-2010 土方机械 声功率级的测定 定置试验条件.pdf
GB-T 17564.3-1999 电气元器件的标准数据元素类型和相关分类模式 第3部分 维护和确认的程序.pdf