Hollow frame is multi function, it can be used for ceiling hanger, partition frame, and also for roofing frame. It is made from steel material with zinc coating that will not rust, free of termite and light in weight.
The profile and shape is consistent and strong suitable to use for housing or building.
Hollow frame installation usually combine with gypsum board or plywood.
They are coming in 2 sizes,20x40 and 40x40 with different thickness which used for different application.