... 1.2 Max,line speed during operation:80m/s Sanding discs. Thickness of fibrebacking(mm)0.6, 0.8, ... 0, 1.2Max,line speed during operation:80m/sabrasive discs are produced on the production line imported from Italy ... fibre,synethetic resin and abrasive as raw material.The discs are intended for use on electrical and pneumatic ... ,p180,Dimensions(mm):dia 100 bore16tf,abrasive paper,fibre discs,abrasive tool