... machines,Temperature range:-40~150°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.Materails ... ,silicon rubber and etc.3.Color: Black, Red, Blue4.Usage: for engine air intake, exhaust, water, oil resistance, turbocharger, radiators,intercoolers ...