trailer pump parts Specialized in concrete pump parts and spare parts,like delivery pipe,elbow,clamp,rubber hose for PM,etc ... introduction of our products: we produce and supply concrete pump parts(fitting to Schwing and PM , Sany, Zoomlion,CIFA,etc),which ... cutting ring Fitting to schwing,PM,SANY,Zoomlion,etc8.Other parts to the pump truck We can also supply the s ...