rubber hose assembly, acetylene hose, rubber acetylene hose 1.w.p.:20bar 2.b.p.:60bar 3.temperature: -25C----80C rubber hose assemblyoxygen acetylene twin hose, acetylene hose, rubber acetylene hose part ... . Etc. Inner Tube: SBR blended, black, smooth Reinforcement:textile braided high tensile synthetic yarn Cover:EPDM/SBR blended,black, or red ...