One of the truss-types Interal T.C. produces is the Protruss-serie.
It's fully compatible with one of the world standards in truss. Useful for those who already have their own stock and want to expand it with new Interal T.C. trusses. 
The only difference between our Intertruss-serie and the Protruss-serie is a diffrent measurement in the connectionpieces. It's Easy to build, and available in various lengths, corners and circles.

The protruss-serie is ranged in 3 layers :

light, elegant, decorative usage.

Multi Purpose
light, strong, mainly used for sound- and lightequipment 

Heavy Duty
strong, mainly used as pre-rig-truss.

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