My older vinyl (can't recall manufacturer) has weatherstrip on both the casement window (side panels of a bay window) and the body of the unit onto which it closes. That is fully degraded and the "fold" flap of the weatherstrip is mostly all gone. Do you have something that can replace this?
There are NO markings or numbers anywhere on the bay window, the casements, or the hardware.
AND: THANKS for any help. Paul.