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key blank Our company has produced key blanks more than 10 years. Till now, we can provide many specifications and types of key blanks. The materials we often use are lead copper-nickel alloy, lead brass, and extruded brass. In addition, we can customize non-standard, difficult, high-precision products according to customer requirements. Use of materials: Lead copper-nickel alloy, lead brass, extruded brass The main advantages: 1. Using cutting copper-nickel alloy profiles produced, and the advantages are no edge, no glitches, water chestnut clear, good cutting, high size and accuracy. 2. Improve the traditional stamping process, use automatic retraction, automatic washing tank and other advanced technology combined with the production. 3. Using self-developed copper-nickel alloy, brass, lead-free cutting materials ( non-thermal extrusion products ). 4. Use cold pumping technologies, products and all aspects of the density parameters are close to or more than ordinary copper-nickel alloy materials. Test Method: Take key blanks we produce and the general production of copper-nickel alloy profile of key blanks, and they are perforated with 3.0 twist drill. Copper cut made by cutting copper-nickel alloy of our factory is bulk form or finely, and has very little continuity. Ordinary copper-nickel alloy of copper cut shot is drawn filaments, and strong continuity and basically a very long one. Compare the two products, advantages of cutting copper-nickel alloy that we factory produce is less wear on the tool, good cutting, minor glitches and good handing and so on.