... screw clamp, wedge clampTechnicalprecision castingApplicationConnection of Concrete pump and pump truck pipelineSurfacePainting or GalvanizingServing brandSchwing, PM, CIFA, Sany, Zoomlion, ... concrete pump, Concrete placing boom series.3, Concrete pump truck fittings : Wear plate and wear ring, S valves, ... accessories: Rubber hose , Cleaning ball , Sponge plug, Seal, The bearing seat, Flange. ect.