" (//tractor-service.com)
A steel corner is a solid profile, in the cross section of which there is no internal hollow space. Steel corners are made of ordinary quality carbon steel.
The most popular steel corner is made of ferrous metal steel of ordinary quality, mainly equal-shelf steel corner, due to its wide scope of application both in large-scale construction and in low-rise construction, in the repair of apartments, as well as in private households. The dimensions of the construction corner are determined by the width of the shelf in mm and the thickness of the shelf. The dimensions of the construction metal corner begin with a shelf width of 20 mm and end at 200 mm. Due to its universal shape, it is possible to manufacture a rather large number of various structures and products from a steel corner profile.
"