Muslim clothing manufacturers (Jakarta)

I am going soon to Medan, Bandung, Surabaya. Can anybody recommend small manufacturers around that regions, which make traditional Muslim clothing or areas (villages) where they have production.
I am looking for small / medium size, maybe family owned manufacturers doing traditional men, women Muslim clothes, traditional Indonesian wedding outfits and rare textile (not the same as at large pasar in Jakarta) with local distinction for future tailoring.

Thanks for any recommendations about places for visiting.