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2019-10-26: Blue Diffusion-treated Natural & Synthetic Sapphires recently available in the Market
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นางนันทวัลย์ ศกุนตนาค
อดีตปลัดกระทรวงพาณิชย์
(29 มิ.ย. 2564 - ปัจจุบัน)
Email: rphusit@git.or.th
Tel: 0-2634-4999 633
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