10 g,长度小于10 μm 镍含量60wt% 50 g,长度小于10 μm 镍含量60wt%
10 g,长度10-30微米 镍含量60wt% 50 g,长度10-30微米 镍含量60wt%
10 g,长度50微米 镍含量60wt% 50 g,长度50微米 镍含量60wt%
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