1) Builder : Nippon Sharyo in this case. Tokyu Car Manufacturing, Teikoku Sharyo, Fuji Heavy Industries, Nippon Sharyo and Niigata Engineering for entire KiHa 20.
2) JNR Type KiHa 20 (1067mm gauge) DMU with hydraulic transmission. Length : 20 meters Power of main engine : 180PS = 135kW
Nippon Sharyo in this case.
Tokyu Car Manufacturing, Teikoku Sharyo, Fuji Heavy Industries, Nippon Sharyo and Niigata Engineering for entire KiHa 20.
2)
JNR Type KiHa 20 (1067mm gauge) DMU
with hydraulic transmission.
Length : 20 meters
Power of main engine : 180PS = 135kW
Already withdrawn as JR fleet.
3) Source
Shinpen Zusetsu Diesel Dosha by Tetsudo Kagakusha (1970)
and
http://ja.wikipedia.org/wiki/%E5%9B%BD%E9%89%84%E3%82%AD%E3%83%..BB%8A