Mining Engineering
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ﮔﺮﻭﻩ اعضای VIP ﺳﺎﻳﺖ ﻣﻬﻨﺪﺳﯽ ﻣﻌﺪﻥ ارسال ﺗﺒﻠﻴﻐﺎﺕ، آگهی استخدامی و ﻟﻴﻨﮏ ﮐﺎﻧﺎﻝ و ﮔﺮﻭﻩ ﻣﻤﻨﻮﻉ گروهی اختصاصی برای مهندسین #معدن و #زمین_شناسی @Mining_eng www.mining-eng.ir/link
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