They had outside plate frames and used Walschaerts valve gear.

The cab, boiler and coupled wheels were attached to plate frames.

It had a plate frame, Stephenson valve gear and used saturated steam.

The axles were located in a plate frame, inside which a well tank was rivetted.

The water tank was integrated into the rivetted plate frame.

In contrast to their predecessors the machines were given a plate frame.

They had plate frames and used Stephenson valve gear.

They used saturated steam, had Stephenson valve gear and were built on plate frames.

However the numerous cracks in the plate frame often required repair and the locomotives were frequently out of service.

In contrast to those, the 99.23-24s had mixer-preheaters and plate frames.