... ,Temperature range:-40~120°C. NBR rubber hose,used for oil hose of machines,temperature range:-40~180°C. Silicon ... rubber hose,used for high temperature hose of machines, -40~250°C. 2 ... Red, Gray, Blue, Yellow... 4.Usage: for engine air intake, exhaust, water, oil resistance, turbocharger, radiators,intercoolers, oil application and other systems. 5.We ...