Concrete Pump Coupling 1.Model:DN80-DN200 2.Brand:Putzmeister,Sany,Schwing,Kyokuto ,SERMAC,etc 3.material:Hi-Mn13,20#stee Concrete Pump Clamp Coupling Application: connection of concrete pump & pump truck pipeline. Characteristic:aging resistant,service life more long,hight security,high pressure widely used. Our company has relied on high-tech equipment and technology and developed high wear- ...