Assertion: roof curb | /r/CapableOf | meet astm a653/653m
Facets:
value: with welded corners
type: OTHER
value: with seams
type: OTHER
Source sentences:
text: Prefabricated roof curb to be manufactured of prime galvanized steel construction, 20 , 18, 16 or 14 gauge as required, meeting ASTM A653/653M, with welded corners and with seams joined by continuous water and air tight welds.