Suspension clamp,or duct clamp.G-clamp;Size: 80--1400mm;suspenstion Material:stainless steel;zink plated Suspension ring:Diameter: 80mm, 100mm, 125mm, 150mm, 160mm, 180mm, 200mm, 225mm, 250mm, 280mm, 300mm, 315mm, 355mm, 400mm, 450mm, 500mm, 560mm, 600mm, 630mm, 710mm, 800mm, 900mm, 1000mm. duct suspension ring with rubber and screw