Assertion: cleat's surface | /r/HasProperty | roughened
Facets:
value: optionally
type: MANNER
Source sentences:
text: wherein said top surface is roughened to provide said sharp edges.
text: Optionally, the concave upper surface of flange 12 may be roughened, dimpled or furrowed to increase the friction between it and sole 2 when the cleat body 11 is tightened in position against the sole.