The P36 is specially developed for heavy duty applications - for stage applications, stand construction and pre-rigging. In spite of the compact form of the truss, it can be used for building constructions spanning up to 20 m with a high loading factor. The P 36 truss is available in two versions: rectangular and square. Due to its slender shape, the rectangular model is also much in demand for applications in which the visual image generated plays an important role.

The conical connection pieces allow quick and easy assembly, practically without the use of tools. Interal produces a large assortment of corners, arches, circles and special constructions based on the Protruss 36 series.

The P50 is specially developed for extra heavy duty applications - for stage applications and pre-rigging. It can be used for building constructions with spans of up to 24 m and very high loading factors.The P50 truss is available in two different models ; P50SV and P50SL. The P50SV has braces on all four sides, the P50 SL truss has braces on two sides and ladder bars on the other two sides.

The conical connection pieces allow quick and easy assembly, practically without the use of tools. Interal produces a large assortment of corners, arches, circles and special constructions based on the Protruss 50 series.

The P60 is specially developed for heavy duty applications - for stage applications and pre-rigging. The P60 truss is available in rectangular. Due to its slender shape, the rectangular model is also much in demand for applications in wich the visual image generated plays an important role. 

The conical connection pieces allow quick and easy assembly, practically without the use of tools. Interal T.C. produces a large assortment of corners, arches, circles and special constructions based on the Protruss 60 series.