Buku Tarif Kepabeanan Indonesia or BTKI is Indonesian customs tariff book. Recently some changes made to this BTKI and now HS Codes are in 8 digits.
You can searche for HS Codes or commodity descriptions in our BTKI 2017 page here: http://btki2017.zofiakreasi.com/
Please note, for more accurate info please refer to this regulation: PMK 6/PMK.010/2017.
This BTKI 2017 is also available as Android App. Get it by clicking below image: