DN125 Pipe Flange Clamp (Bracket Type Bolt) Material:Hi-Mn13,20#steel,40cr(ASTM5140) ... Putzmeister, DN125 Pipe Flange Clamp (Bracket Type Bolt) Item NoDN 125 Bracket Type Bolt clampTechnologyForgingMatched with148mm SK flangeWeight4.85kg/pcMaterial40crSurface TreatmentElectrostatic ... material 40Crkinds of types: Quick/snap clamp, bolt clamp, screw clamp, wedge clamp in different sizes 3.5″-6″longer ...