วิธีการปรับปรุงคุณภาพอัญมณี ()

This dataset is published in Thai only. Titles are shown as published — we do not machine-translate source data.

Gemstone quality improvement methods by the Faculty of Industrial Technology, Rajabhat Ramkhamhaeng University.

Agency:

chanthaburi-province

Licence:

Open Data Common

Category:

ข้อมูลสาธารณะ

Geographic coverage:

จังหวัด

Update frequency:

ปี

Source portal:

data_go_th

Updated:

24/07/2025

Record updated 388 days ago; states annual — due

The same record appears 1 more times on: gdc_chanthaburi — counted once here