Tayyor betonda "Fly Ash" ning afzalliklari

tomonidan: | Posted in: Fly Ash | juma, Jul 3, 2020 - 6:52emasman
Fly Ash in concrete

Fly ash is the most mineral residue left over from burning coal by coal-fired power plants. Fly ash pozzolanic, meaning that it has cementitious properties. It is valuable for


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Vale topshiriqlari $3 Quruq temir rudalarini qayta ishlashga milliard

tomonidan: | Posted in: ma'dan | juma, Jul 31, 2020 - 6:50emasman
Dry iron ore processing

Vale do Reio Doce kompaniyasi (CVRD) dunyodagi eng yirik kon kompaniyalaridan biridir. Bosh qarorgohi Braziliyada joylashgan, ularda kon ishlari bor 30 dunyo mamlakatlari. Ular


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