Inner tube: Synthetic rubber, extruded whole without joints, of uniform thickness.Reinforcement: 1 steel wire braid.Coverage: Anti-abrasive synthetic rubber, resistant to oils, fuels and atmospheric conditions.Recommended fluids: Mineral and biological oils, glicol-water based, water, lubricants.working temperature: from -40 to +100°C (intermittent 120°C), from -40 to +70° C for water based fluids, from 0 to+70°C water.