... , food contact, skin contact. Filaments for 3D printer Characteristic 1. Filaments produced by biobased environmental materials PLA ,PVA and engineer ... monitor and interlock device, smooth surface, no bumps, independent R&D, folded no break, high hardness, high strength, lots colors for ... 20%30Accuracy-2.94mm-2.98mm,1.7mm±1.74mm2.94mm-2.98mm,1.7mm-1.74mmColorsPLA -3mm/1.75mm Clear,red,green,yellow,blue ...