material: ABS PLA plastic diameter: 1.75mm 3.0mm color: more ... + /-0.1mm,roundness +/-0.05mm;(6) 1 kg /plastic spool packaging, can be automatic feed;(7) to be applied ... 8-3.0mm, roundness +/-0.05mm, each spool net weight 1kg+/-0.05kgIV we put all filament spool ... developing we have engineers that specialty in color formulation ,plastic modification, packaging, quality control ,producing control, we can ...