GALFAN is the mixed rare earth alloy coating with high corrosion resistance. The corrosion resistance of the products is about 2-3 times better than that of ordinary galvanized ones. No matter it is exposed outdoor, in wet conditions, or in other harsh environment like inmarine climate, its corrosion resistance is better than that of ordinary galvanized or electro galvanized ones; The international automobile association will put forward higher request on bondy tube corrosion resistant performance on cars . Pure galvanization tubes will not meet requirements. The production of Galfan Bundy tube provides high quality products with competetive price for the automotive pipeline system. It is made of high quality low carbon steel pipe with double-layer copper surfaced/Monolayer welding. With the surface treatment of copper coating, deoxidation ,hot-dip GALFAN alloy coating layer technology.