... from 2''-8'', snap clamp, bolt clamp, screw clamp, used for Schwing, PM, Sany, nameSchwing concrete pump parts--couplingsize2inch----8inchTypeSnap clamp, bolt clamp, screw clamp, wedge clampSurfacePainting or ... , Sany, KZoomlion and so on DN125 Schwing concrete pump Pipe bolt Clamp