Sigma with metal sheet panels covering

Cross-bar thickness: 53 mm, 40 mm and 30 mm
Available also in the blind version: panels (closed on sides) are made in press-formed sheet metal, suitably shaped with a proper typology and thickness. Available also in the version for manual lifting platforms, for which inside smooth wire will be necessary for access sides. Mainly suitable for indoors.
Covering to be laid from outside the shaft.