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/sci/ - Science & Math

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>> No.4944782 [View]
File: 54 KB, 660x495, Industrial_diamond_super_abrasives_CBN_powder_JSCBN850.jpg [View same] [iqdb] [saucenao] [google]
4944782

>>4944674
Industrial diamond is fucking metal. Look at how black this shit is. You can't get any more metal than that.

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