... , construction, engineering, shipbuilding, steel production etc.Tube: NR & SBR synthetic rubber, black color.Reinforcement: High tensile synthetic yarn, single/double yarn ... braided or spiraled.Cover: NR & SBR synthetic rubber, black, red, yellow and tube in colors etc.Characteristics: Abrasion ... ”3242213301-1/2”3851213302”516521330 manufacture of 1/2" solid rubber air hose gas hose