geschnitten

In the past, these were cut from thin sheet metal.

past participle of schneiden

(class-1, intransitive, strong, transitive) to cut; to carve; to slice
(class-1, intransitive, strong, transitive) to pare; to clip; to mow; to prune; to trim
(class-1, figuratively, strong, transitive) to cut (someone) off; to cut in on (someone)
(class-1, strong, transitive) to edit
(class-1, reflexive, strong, transitive) to intersect
(class-1, reflexive, strong) to cut (oneself)
(class-1, colloquial, reflexive, strong) to delude (oneself); to become mistaken; (in the perfect tenses) to be deluded, to have another think coming
(class-1, strong) to avoid someone (to cut someone)