Concrete Pump Pipe SCHWING, PUTZMEISTER, SANY, ZOOMLION SUPPLIER, ST52 SEAMLESS, DN125 (5'') 3 MTRS ... rings, pistons, and so on.2. As a supplier of SCHWING,SANY,ZOOMLION, we alway try our best to fulfill duties ... in their area.3. Our parts can be used on SCHWING, PM, KYOKUTO, SANY, ZOOMLION, SERMAC, CIFA, ELBA, IHI, NIIGATA, etc ...