The Isotec system profiles are extruded according to DIN 17615 from AlMgSiO, 5F25, all surfaces with matt finish and anodized in a natural color. 
The Isotec profiles have been developed as machine construction profiles with high twisting and bending capacity. Eight different compatible profile types allow optimized solutions for taking up static and dynamic loads.
SPT-profiles are also used in the Isotec modules:

profile cad files cross section (mm)
SPT-P30-30-3N 30 x 30
SPT-P30-60 30 x 60
SPT-P40-40 40 x 40
SPT-P40-80 40 x 80
SPT-P80-80 80 x 80
SPT-P50-50 50 x 50
SPT-P50-100 50 x 100
SPT-P100-100 100 x 100
Isotec Katalog Systemprofiltechnik   Katalog Systemprofiltechnik