Coaches was made by PT INKA
(PT Industri Kereta Api (Persero) / The Indonesian Rolling Stock Manufacturing Corporation, Ltd., abbreviated as Inka or INKA LTD, is a government-owned corporation which was formed on 19 August 1981 as the successor of Balai Yasa Lokomotif Uap (steam locomotive workshop) owned by Perusahaan Jawatan Kereta Api (now PT Kereta Api Indonesia) in Madiun East Java, Indonesia. As of mid-1970s, steam locomotives are no longer used in Indonesia and the defunct workshop was then converted into a railway rolling stock manufacturer)
