Concrete Pump Boom Pipe SCHWING, PUTZMEISTER, SANY, ZOOMLION SUPPLIER, ST52 SEAMLESS ... parts in China, specialized in producing concrete pump delivery pipe, rubber hose, elbow, bend, reducer, coupling, cleaning ... .0148mmChrome Carbide insertSchwing,Putzmeister, CIFA, Kyokuto, SanyZX-Pipe(ST52)Harden ZX-Pipe1257.0ZX-5’’F/M FlangesPutzmeisterHigh ... DN125 ST52 3m Concrete Pump Boom Pipe For Sany Pump