Y20/Y24 Jack Hammer Rock Drill Machine Rubber Air Hose with ID 19mm 25mm for Pressure 2MPa 300psiRubber Air Hose (Jackhammer hose)Construction: Tube: NR & SBR synthetic rubberReinforcement: high tensile polyester fiber braidedCover: NR & SBR synthetic rubberTemperature:-30ºC ~ +80ºCColor:black, red,