Overview API Rotary Drilling Rubber Hose for Oilfield steel wire spiral 1.CONSTRUCTION: It is composed of an inner rubber protection layer, middle rubber layer, steel wire spiral layer and external rubber cover. 2.APPLICATIONS: Steel wire spiral drilling rubber hoses are used in oil fields, well cementing, well repairing, geological explorations, small drilling machine, and water conveyance at coal excavations. Used to carry slurry, water at environmental temperature, and other fluids. 3.Execution Specification: API SPEC 5CT, API SPEC STD 5B, API RP 5C1, API RP 5A5, API RP 5B1, API BUL 5C3 SY/T 6194-2003, GB/T 9253.2-1999, GB/T17745-1999, SY/T 6474-2000, GB/T18052-2000, SY/T 6328-1997