shaft liner

A shaft liner assembly has a series of layers of accurate segments, the segments in each layer forming a circle, and each side edge portion of each segment being outwardly reversely bent. The assembly also includes a series of connecting brackets, each bracket having a base portion with wing portions extending from opposite sides thereof and inclined towards one another. Lafarge Shaft Liner is special fire resistant plasterboard designed for elevators and other shafts and ducts in multi-level constructions.
The advantages of shaft liner:
1. High material utilization
2. Lower production costs
3. High surface finish and so on