GB T 17951-2000 硬磁材料一般技术条件.pdf

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GB T 17951-2000 硬磁材料一般技术条件.pdf

GB T 17951-2005 硬磁材料一般技术条件.pdf

GB T 17951-2005 硬磁材料一般技术条件.pdf

GOST 21559-1976 Magnetically hard sintered materials Marks《烘烤的硬磁材料 牌号》.pdf

GOST 24897-1981 Solid magnetik deformed materials Marks《变形硬磁材料 牌号》.pdf

GOST 17809-1972 Casting hard magnetic materials Marks《铸造硬磁材料 标志》.pdf

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