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ISO 6157-1 1988 Fasteners Surface discontinuities Part 1 Bolts screws and studs for general requirements.pdf
ISO TS 3814 2014 Standard tests for measuring reaction-to-fire of products and materials — Their development and application.pdf
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ISO 18400-101 2017 Soil quality — Sampling — Part 101 Framework for the preparation and application of a sampling plan.pdf
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GB-T 17347-1998 商用道路车辆 尺寸代码.pdf
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GB-T 16489-1996 水质 硫化物的测定 亚甲基蓝分光光度法.pdf
GB-T 29489-2013 高压交流开关设备和控制设备的感性负载开合.pdf
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GB-T 15300-1994 电子设备用电位器 第二部分 空白详细规范 螺杆驱动和旋转预调电位器 评定水平 E.pdf
GB-Z 29014-2012 切削刀具数据表达与交换 参考字典的定义、原则和方法.pdf
GB-T 4797.9-2021 环境条件分类 自然环境条件 贮存、运输和使用过程中测得的冲击和振动数据.pdf
GB-T 20852-2007 金属和合金的腐蚀 大气腐蚀防护方法的选择导则.pdf