Schwing Concrete Pump Harden Pipe SK FlangeMaterial:ST52, 45Mn2, 20#,Q235 Brand: Schwing, PM, Sany, Kyokuto ... )Weld-on EndsApplicable pump BrandsST52/ST37/20#/Q235steel pipe1254.03000/2000/1000148mmSchwing,Putzmeister, CIFA, Kyokuto, Sany,4.5148mmSchwing,Putzmeister, CIFA, Kyokuto ... HD/ZX-6inch F/MOthers Schwing Concrete Pump Harden Pipe SK Flange