Assertion: honeycomb's length | /r/HasProperty | set to 400 mm
Facets:
Source sentences:
text: 1(a) and 1(b), when the outer diameter of the preform material for a honeycomb structure 5 a to be charged is about 300 mm, the length of the drum 7 is set to 400 mm or less, for example, about 400 to 300 mm.