Designed and constructed for maximum safety and service, Edelmann lines resist corrosion, vibration, fatigue and shock from impact. Edelmann lines are coated for corrosion protection in compliance with GM123M-ASV and S.A.E. J527B. Each line is made by double wrapping a copper coated steel strip to form a double wall tube. Net, the tube is furnace brazed to fuse the copper/steel tube into one continuous and seamless tube. The tube is then given a super terne coat for excellent corrosion protection. The resulting lines are the strongest and safest available, yet can still be easily bent without kinking or without damaging the super terne coat.