... ST52,45Mn2,20#, Q235, J55etc 3.Thickness:4.0-8.0mm 4.Length:3M,2M,1M etc Concrete pump steel ... EndsApplicable Pump BrandsST52/ST37/20#/Q235 steel pipe1254.0,4.5,7.03000/2000/1000148mmSchwing,Putzmeister, CIFA,KyokutoHarden ... High PressureSchwing F/M pipe(ST52)1254.0,4.5,7.0,8.03000/2000/1000Schwing 5", ... /1504.5,8.01000/1500/2000/3000/6000122mm/127mm/4" HD6"HD/ZX-6"F/MOthers DN150,DN125, ...