Since 2006, we have the new revolutionary CAL connection corner, with ever-growing sales to existing and newly-created profiles. The cal corner does not need holes in the profiles to work. With a small notch at the end of each attached profile (only to fit Allen to snap it), it hooks and tightens the two profiles loudly and at the same time automatically aligns them. The measurements made by the internationally-acclaimed German ROSENHEIM rating agency have shown that an average-sized CAL angle can withstand pulling around 400kg.
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