Material: It is extruded from 3003 grade aluminium alloy which emits corrosion resistance properties and high pressure resistance. Used for automotive AC line, hydraulic braking systems, fuel systems, and transmission systems, fit for compression fitting. Feature: Easy to bend, unroll, cut, form, straighten, flexible and install. Stable quality. Used for automotive AC line, hydraulic braking systems, fuel systems... It is extruded from 3003 grade aluminium alloy which emits corrosion resistance properties and high pressure resistance. Easier to bend than steel tubing and cheapper than copper tubing It is extruded from 3003 grade aluminium alloy which emits corrosion resistance properties and high pressure resistance. High Pressure Rating: With a maximum working pressure rating of 980 PSI, this fuel line is versatile enough to handle a variety of applications. 1/4 OD tubing x 6 foot coil 90/10 brake line Fuel Line Ac Line Refrigeration Tubing 5/16 Fuel Line, 25FT 3003 Grade Aluminium Tubing For Brake Line 1/4 Inch Aluminum Tubing