... beam clamp,universal beam clamp. All size are available malleable iron.black. malleable iron beam clamp,casting beam clamp,universal beam clamp.All ... size are available malleable iron.black.zinc plated , plain. Designed load of cast ... steel clamp: 3.7kNFeatures:1) Material:Malleable iron2) Surface treatment: PLAIN, PG, EG, HDG, POWDER ...