Schwing Concrete Pump Pipe Flanges/Weld-on Collars 1.Material: ... cleaning balls and so on.2. As a supplier of SCHWING,SANY,ZOOMLION, we alway try our best to fulfill duties ... . Our parts can be used on SCHWING, PM, KYOKUTO, SANY, ZOOMLION, SERMAC, CIFA, ELBA, IHI, NIIGATA, etc, concrete boom pumps, trailer ... sizes or parts, please feel free to ask us Schwing Concrete Pump Pipe Flanges/Weld-on Collars