Metal, preferably aluminum angled profiled piece has two arms with lengthwise groves in the middle of which a re holes parallel with the grooves

摘要

The metal and preferably aluminum or aluminum alloy angled profiled element (1) has two arms (2,3) extending in a lengthwise direction and positioned at an angle to each other. At least one surface of the arms has evenly spaced apart lengthwise grooves (4) running in a lengthwise direction. The space between each two grooves , in the material of the arms, contains lengthwise parallel holes (5) running parallel with the lengthwise grooves.