material: ABS PLA plastic diameter: 1.75mm 3.0mm color: more than 10 colors in store packing: 1kg/spool/ ... in 3D printing, has the following characteristics:(1) high strength, good toughness;(2)density is small, when printing larger volume model ... .5.research and developing we have engineers that specialty in color formulation ,plastic modification, packaging, quality control ,producing control, we ...