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| The ERT 300 Tension Tester The ERT 300 is the latest in the range of tension testers produced by Beers of Switzerland.
The operation is very simple. You clip the tester to the strings, press a button and the tension of your strings is displayed in a few seconds. | Further News Details of the ERT 300 will in future be shown on the Racquet Technic site Please use the following link | ||||||||||||||||||||
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please send e-mail to "ert300@racquet-technic.co.uk” | ||
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April 2006 | ||
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