专利 一种高散热效率的LED射灯
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ISO 14997 2017 Optics and photonics Test methods for surface imperfections of optical elements.pdf
ISO 12401 2009 Small craft Deck safety harness and safety line Safety requirements and test methods.pdf
ISO 17840-2 2019 Road vehicles Information for first and second responders Part 2 Rescue sheet for buses coaches and heavy commercial vehicles.pdf
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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
GB-Z 17625.5-2000 电磁兼容 限值 中、高压电力系统中波动负荷发射限值的评估.pdf
GB-T 818-2016 十字槽盘头螺钉.pdf
GB-T 30205-2013 飞机固态遥控功率控制器通用要求.pdf
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