Air brake hoses are suitable for air braking systems of a variety of vehicles, such as buses, automobiles, and trucks. Using the air hose can slow down your car at a rapid speed to avoid horrible accidents. They can withstand in -40°C to 100°C and have features of oil, weather and ozone resistance, lower inner volume expansion, flexibility and kink resistance. There are two kinds for 2 spiral and 4 spiral structures.