The Sggrss series container freight wagon with three Y 25 Lsd1 double-axle bogies is designed for transporting 20′ and 40′ containers. The wagon consists of two separate load-bearing sections, A and B, of similar design, connected by a UIC/ERRI joint. There are a total of 8 folding securing elements (pins) on the wagon frame. Depending on the type of cargo, only those securing elements that correspond to the dimensions of the container corner elements remain in the working position during loading. The wagons are low-maintenance and easy to care for and operate. All parts requiring maintenance are easily accessible, and parts important for assessing safe operation (such as the running gear, brakes, draw gear, and buffing gear) are clearly visible. Articulated wagons are designed in accordance with the principles of UIC 572 and also comply with TSI, UIC, RIV, and TJ regulations.