31322801jointsPT2026-03-30 20:27:02UF31322802connectionsNDUF31322803jointNDBT31307098joints and joint componentsPTNT31348412[joints by material joined]PTNT31348413[joints by form]PTNT31348414[joints by function]PTNT31348415French jointsPTNT31348435tight jointsPTRT31322568hingesPT