1. We are a professional manufacturer of concrete pump pipes and partsin china. Our products includedelivery pipes, rubber hoses, elbows, bends, reducers, couplings, cleaning balls spectacle plates cutting rings, pistons, and so on. 2. As a supplier of SCHWING,SANY,ZOOMLION, we alway try our best to fulfill duties as a industry leader, not only in bringing customers good quality, but also in helping our customers gain reputation in their area.3. Our parts can beused on SCHWING, PM, KYOKUTO, SANY, ZOOMLION, SERMAC, CIFA, ELBA, IHI, NIIGATA, etc, concrete boom pumps, trailer pumps or shotcrete machines.ZHONGLING Steel Pipes Specification: TypeDNThickness (mm)Length (mm)Weld-on EndsWeight (kgs)Applicable Pump BrandsST52 Steel Pipe1254.03000/ 2000/ 1000148mm41Putzmeister, Schwing4.5148mm46Putzmeister, Schwing7.0148mm72Putzmeister, SchwingHardened Pipe1254.5148mm Chrome Carbide Insert48Putzmeister, Schwing7.0148mm Chrome Carbide Insert76Putzmeister, SchwingTwin-Wall Pipe1252+2148mm Chrome Carbide Insert45Putzmeister, Schwing2.5+2148mm Chrome Carbide Insert48Putzmeister, Schwing4.5+3148mm Chrome Carbide Insert76Putzmeister, SchwingZX-Pipe(ST52)1257.0ZX-5" F/M flangesPutzmeister high pressureHardened ZX-Pipe1257.0ZX-5" F/M flangesPutzmeisterSchwing F/M Pipe (ST52 )1254.0Schwing 5" F/M flangesSchwing high pressure4.5Schwing 5" F/M flangesSchwing high pressure7.0Schwing 5" F/M flangesSchwing high pressure8.0Schwing special F/M flangesSchwing super high pressure (PN200)Steel Pipe1004.53000122mm/127mm/4"HDothers4.52000122mm/127mm/4"HDothers4.51000122mm/127mm/4"HDothers1508.060006"HD/ ZX-6" F/Mothers8.030006"HD/ ZX-6" F/Mothers8.015006"HD/ ZX-6" F/Mothers8.010006"HD/ ZX-6" F/Mothers For more parts, please feel free to ask us.