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2. Other English version GB Standards are not ready translated, only after get your order, then we translate them, time usually need 3-5 days . |
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GB/T 3658-2022 Ring test method for magnetic properties of soft magnetic metal materials and powder metallurgy materials in the frequency range of 20Hz to 100kHz 软磁金属材料和粉末冶金材料20Hz～100kHz频率范围磁性能的环形试样测量方法 - 中英文版 |
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GB/T 12767-1991 Powder metallurgy products--Surface roughness--Parameters and their values 粉末冶金制品 表面粗糙度 参数及其数值 - 中英文版 |
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