volume
pu
pu spec
» 74~78d hardness.
» 40kj/mm^2 impact strength
» 100mpa flexural strength
pu insert
» bolt washer – 11mm∗18mm
» screw washer – 6.5mm∗11.5mm
volume spec
» fibre-reinforced plastic 4ply
» 2layer texture w/ 80 sand grit
volume insert
» screw washer – 4mm∗6mm