Demijohn-like bracket is intended to combine air terminals together
on a rooftop on a demijohn-like base.
It is made of 2 mm steel sheet.
An air terminal is mounted by bending the plate (ZZ)
or with two bolts M6x16, or alternatively by pressing the wire into the plastic filler.
Mounting on a metal sheet-covered roof is done with riveting or sheet-metal screws.