... suspension Subframe: Eight locking pin design for 2 x 20-foot, 1 x 40-foot container, center lock pin can ... air-actuated Springs: seven number of leaf springs, width x thickness: 90mm x 16mmnderframe: Main beam: I shape, 500mm height, mild ... plate type semi-trailer, container chassis semi-trailer, flat bed containerized semi-trailer, bunker grid-type semi-trailer, low bed semi-trailer, steel (composite ...