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- Thu Jun 16, 2011 3:02 pm
- Forum: General Slalom Skateboard Truck Discussion
- Topic: Radikal compatible axles from Buzzed
- Replies: 7
- Views: 5049
The StressProof (R) steel is not patented. The process for making it was developed in 1938 and the process for making it has had several patents over the years. StressProof is a registered trademark of Niagara LaSalle Steel Co. The steel is commercially available from other sources under the design...