• 1996 Sumitomo Metal Technology, Inc. Test: 

        • Over 1.5 million cycle Sure Lock joint fatigue lab test.

        • Torsion test

        • Bending

        • Bursting

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• Assembly Failures:  1 in 100,000 during last 30+ years

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• Operational Failure Rate during last 30+ years:  1 per million (.0001%)versus welding  3-5% failure rate during first five years.