rouleau à vernir
/ˈbʁɑ̃ʃ sypeʁjˈœʁ/
n
English: varnish-roller · 涂漆滚筒
Sens：Instrument used to spread varnish on the surface and prevent ink from adhering to it; it ensures that only the figure is inked.
English: varnish-roller · 涂漆滚筒