We offer Concrete Pump Rubber Hose.Production process: inner rubber layer; cord rubber tape; cord rubber tape is winded on inner rubber layer with 1 to 90 angle, forming the first cord rubber tape layer; put a layer of middle glue tube on the first cord rubber tape; wind steel wire layer on the layer of middle glue tube; middle glue tube layer and steel wire layer must not less than two; put middle glue tube on steel wire layer; wind second cord rubber layer on the middle glue rubber layer; put outer glue tube on second cord rubber tape layer; past trademark on the surface of the outer rubber sleeve; dressing and molding; vulcanization and molding; crimping the connector.Material:Rubber/SBR with steel wireSpecification:34 5 6, 2-6mService Life:20, 000mWorking Pressure: 85BarApplication:Putzmeister, Schwing, Cifa, Sany, Zommlion etc.A variety of specifications.we can product other specifications to the needs of customer.