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آيا از تاثير آشنايي علمي و عملي با سنگ هاي قيمتي و نيمه قيمتي در فعاليت اقتصادي خود باخبريد.
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Central office & Training office & laboratory no.1 : 207 and 305 unit - second and 3th floor - Arg trade building - 4-floor crossroads - Emam Khomeini ave. - Mashhad- Iran
Mobile : 09151102806
Telefax : 0511 – 2256810 , 11
Training office & laboratory no.2 : 13 unit - no12 - 20th Gandi ave. - Vanak sq. - Tehran - Iran
Telefax : 021 – 88772459 , 88886959
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