Threaded corners, threaded sleeve corners and screw corners consists of single component, which possesses internal and external threads in coordinate directions

摘要

The threaded corners, threaded sleeve corners and screw corners consist of a single component, which possesses internal and external threads in the coordinate directions. Threaded corners, threaded sleeve corners and screw corners consists of nuts, pins of metal and threaded sleeves (11,12,13), which are joined by adding, welding, gluing of several components.