ระดํ quality
1990.2545 agency which involved with silk, such as Department of agriculture, the Ministry of agriculture and cooperative organizations of กรมหม่อนไหม (original), Faculty of fine arts. University, intellectual property department, the Ministry of Commerce.The queen. Together to find solutions for the seminar and the conclusion is the exchange protection and บังคับใน silk silk production by chest emblem. Guarantee the quality of Thai silk is at various levels.The queen and Royal Thai royal symbol to mark quality certification for Thai silk product in 4 type
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