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All our Dor Closers and Floor Springs are tested according to the European Standard EN-1154.
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Although there is no official standard for multi-axis hinges such as our Concealed Hinges, we still test them according to the EN-1935 standard for Butt Hinges,
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Therefore, all closers are guarantedd to pass a minimum of 500,000 cycles, and hinges can pass a minimum of 200,000 cycles.
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