500mg,Average diameter:~50nm
1g,Average Nanotube diameter:50-100 nm 5g,Average Nanotube diameter:50-100 nm 500mg,Average Nanotube diameter:50-100 nm
500mg,Average diameter:~50-100nm 1g,Average diameter:~50-100nm
250mg,纯度：75% 500mg,纯度：75%
250 mg,纯度: 40-50%, 长度: ≦200 μm 500 mg,纯度: 40-50%, 长度: ≦200 μm
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