Welded riddles are produced by resistance welding of profiles with crossbars, or longitudinal and transverse wires. For example, welded riddles such as slotted riddles have many advantages, such as a robust construction or an exact distance between the cross-bars. Because many combinations of profiles and crossbars are possible, flat welded slotted riddles can be both lightweight and more robust, making them suitable for use in various industries. It is possible to design and manufacture by WELD technologia zgrzewania the multi-point welding machines, automatic for the production of a wide range of welded riddles.