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Patricia Trautwein Đánh giá về Gemology training center (gtc)
The gemology course I recently completed was infor...
The gemology course I recently completed was informative and enjoyable. The instructors were experienced and made the classes engaging. The course content was well-organized and covered a wide range of topics. The practical sessions helped enhance my understanding. I would recommend this training center to anyone interested in gemology.
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