... , specialized in producing concrete pump delivery pipe, rubber hose, elbow, bend, reducer, coupling, cleaning ball, piston, cylinder, eye-glass plate, ... price Type DN Thickness (mm) Length (mm) Weld-on Ends Applicable pump Brands ST52/ST37/20# /Q235steel pipe 125 4. ... 7.0 148mm Schwing,Putzmeister, CIFA, Kyokuto, Sany, Harden Pipe 125 4.5 148mmChrome Carbide insert Schwing,Putzmeister, CIFA, Kyokuto, ...