Assertion: honeycomb's porosity | /r/HasProperty | the honeycomb structure
Facets:
Source sentences:
text: The characteristics of the present invention lie in satisfying all of the following three requirements; that is, the porosity of the total of the cell walls 2 and the outer wall 4 both constituting the honeycomb structure 1 is 5% to less than 30%, the thickness (T c ) of the cell walls 3 is 0.030 mm≦T c <0.076 mm and the average surface roughness (Ra s ) of the outer wall 4 is 0.5