3D Printing Filament

3D printing materials: ① from terms of demand: environmentally friendly, Biodegradable, flexible or affordable; ② from terms of raw materials: PLA Filaments (silk, marble, wood, carbon PLA ), ABS Filament, PA/Nylon Filament, PC Filament, PCL Filament, PETG Filament; ③ from terms of filament diameters: 1.75mm or 3.00mm; ④ colors