... 3D printing, has the following characteristics:(1) high strength, good toughness;(2)density is small, ... of premier grade ABS material, low water absorption, high tough. Factory direct sales, inexpensive, buy more, bigger ... half a yearHigh, much bubbles printing at high temperature after the filament opened from seal packaging ... range at 1.6-1.8mm/2.8-3.0mm, roundness +/-0.05mm, each spool net weight ...