Test report BTS08 CFA Last October our French customer welded the TungStuds BTS08 on a CFA. At that test they welded just 10 TungStuds to protect the flights of that auger but in future they will protect the whole fights. After approximately 1000 borings (secant pilewalls) with 8m depth each the TungStuds were still in good condition as you can see on the following pictures. The customer was very sa

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