Strong double T profile frame. Used in industries producing concrete blocks Aarms fitted with self-aligning vulkolan blocks, “floating” on a lung filled with glycerine (incompressible material with low freezing temperat......Strong double T profile frame. Used in industries producing concrete blocks Aarms fitted with self-aligning vulkolan blocks, “floating” on a lung filled with glycerine (incompressible material with low freezing temperature) to compensate loads irregularities Reduced weight, LL and centre of gravity Excellent visibility