NiCopp therefore has the strength and structural integrity of steel lines but with the added benefit of being much more corrosion resistant. NiCopp is also easier to bend and form than steel tubing. Nickel-copper, commonly referred to as '90-10 copper', has been Custom on several European vehicle brake systems sPerfect Steerable Transfer Carte the 1970's, Perfect Steerable Transfer Cartluding: Volvo, Audi, Porsche, and Aston Martin.