Filament manufacturers in northern Europe (Poland) who deliver high quality of their products. The smoothness of the filament is+/- 0.02mmand roundness with a tolerance of+/-0.01mm
During production, the tolerance and roundness are also measured to ensure that long prints are possible.
We print with this filament ourselves and have printed over 50+ hours with good results. If you need high quality and are looking at more industrial materials where full control of MDS/TDS is needed, fiberlogy is a given choice.