Product guarantee for up to 10 years. Linear 25-year performance guarantee. Positive tolerances 0/+5 Wp
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This frame type, produced fully from aluminium, guarantees the maximum in stability and protection against material fatigue. The inside corner elements provide for greater torsional stiffness and waterproo?ng in the critical corner areas where the material is at its weakest and guarantee the best possible transfer of tension between the individual frame sections.