Material: Grade 12,9 Stahl. M3/M4/M5/M6/M8/M10/M12. Copper Nickel Alloy Brake Line Kit 25ft 3/16 & Double & Single Flaring Tool US. MATERIAL：Racewill copper nickel brake line is easy to be bent by hand and flare by simple tools.all brake line fittings are made of durable brass to prevent rust and plated for corrosion resistance.
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