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Amazon.com: Polymaker Tough PLA 3D Printer Filament 1.75mm, 750g Black PLA Filament - PolyMax 1.75 PLA Filament Black, Tougher Than PLA+ 3D Filament, High Impact Strength for Functional Application : Industrial & Scientific
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Amazon.com: Micro Center Inland Tough PLA Filament 1.75mm – Dark Gray 3D Printer Filament - Professional Toughness Enhanced PLA - Dimensional Accuracy +/- 0.03 mm - 1 kg Spool (2.2 lbs) – High Impact Strength : Industrial & Scientific
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