In modern decoration styles, people are pursuing simple and generous decoration styles. Therefore, the hinges in door and window hardware have derived cross-concealed hinges. Unlike the old-style hinges, the cross concealed hinges are hidden. Even if the door is opened 180 degrees, the hinges cannot be seen. You can refer to the G80 series concealed hinges of Lelang Hardware. The concealed hinges have strong bearing capacity and can be opened 180 degrees after use. Two G80 concealed hinges can support a door weight of 80kg, which is beautiful and practical.