... or Galvanizing 4.4-6inches Schwing DN125 5 inch concrete pipe couplings---cast iron pipe clamp TypeSnap clamp, bolt clamp, screw clamp, wedge ... of Concrete pump and pump truck pipelineUsed forSchwing, PM, Kyokuto, Sany, Zoomlion,Ihi, NiigataSize4inch-6inch other sizes and types upon requestOur flanges ...