GRT Darma - Model GBM -External Pantograph Suction Arms With Balancing Springs

External pantograph arms with balancing springs and frictions on joints. The GBM suction arms are equipped with pantographs on the part that is fastened to the shelf and are characterised by good strength and a good capacity to maintain the position. The 2GBM series is equipped with a pair of pantographs while the 4GBM series uses two pairs of pantographs which make it more suitable in the case of heavy use.