Assertion: radial tire's structure | /r/CapableOf | form by even number of plies
Facets:
value: not necessarily,
type: OTHER
value: by material
type: OTHER
Source sentences:
text: Said outer structure is preferably, but not necessarily, formed by an even number of plies, formed by threads of high extensibility, i.e. by material which has a breaking extension and an extension at intermediate loads, which is much greater than that of fibres of aromatic polyamide.