Merih Automatic Landing Door B-20 Serie Merih Automatic Landing Door B-20 Serie b-20serisi4 b-20serisi3 b-20serisi2 b-20serisi1 4panelmerkezi 3panelteleskopik TECHNICAL SPECIFICATIONS CE certificated locking device Modular selling and assembling available Multiple mechanical adjustments: Panel adjustment in 3 axes Lock position adjustments Spring force adjustment Mechanism position adjustment