heavy duty clamps to din 3017 are particularly designed for sealing suction and pressure lines with plastic or steel reinforcements and high shore hardnesses. distinguishing feature: extremely high band tension. new specially designed bolt with integrated spacer = improved efficiency. reinforced loops = allow to withstand significantly higher torques. mechanically locked closure = no welding points = no contact corrosion. bridge = optimal hose protection. robust band with rounded edges = protection against injuries and damage to the hose surface. the assembly of normaclamp gbs is easily completed by means of either manual pneumatic or electric standard tools.