under

[odelendik]

Как перевести with working side turned down 1-1/2" (38 mm) and under 1/2" (13 mm) in channel shape with resulting corners welded

Контекст:
Shelves shall be constructed of #16 gauge (1.59 mm) polished stainless steel with working side turned down 1-1/2" (38 mm) and under 1/2" (13 mm) in channel shape with resulting corners welded, ground and polished smooth unless otherwise specified.

Это описание конструкции полок.

[alk]

turned down + turned under?
загнутыми и подвернутыми

[odelendik]

Текст взят из оригинала без изменений.