PBO fiber is the kind of material that can resist high temperature up to 600℃. The needle-punched roller that combines PBO and Para-aramid is the ideal product to use for the extrusion initial area and run-out table. Color: Surface brown and yellow underneath Working Temp.:550℃ for long time and 600℃ for short time Overall thickness: 6mm,8mm,10mm, 12mm Thickness of PBO layer: 2mm, 3mm, 4mm Length: 100mm~2,000mm