| The colours for the underframe can be combined freely according to the Trautwein colour chart. |
| The element is very easy to install in existing wagons, between the laminated spring buckle and underframe. |
| All underframe wiring associated with the existing suspension bearing monitoring systems has been renewed to improve reliability. |
| It is considered that much of this upwards bending likely resulted from damage to the underframe when the right collision post was forced aft. |
| As the main bearing structure, the carbody consists of the underframe, corrugated floor, side sill, and so on. |
| Its richly decorated interior is based on papier mache panels fixed to a wooden underframe in turn attached to the cast-iron skeleton. |
