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пиролит бал чулуу

(пиролит бал чулуу) Пиролитик бал чулуу нь нүүрстөрөгчийн шинэ төрлийн материал юм. Энэ бол өндөр талст чиглэлтэй пиролит нүүрстөрөгч юм, which is deposited by chemical vapor deposition of high-purity hydrocarbon gas on…

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Graphite mine

(Graphite mine) Where is graphite mine? China has the largest reserves in the world, distantly followed by Mexico, the Czech Republic, Madagascar and India. Several other countries, including Canada, Germany, Sri Lanka…

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Графит

(Графит) Graphite is an opaque, non-metallic carbon polymorph with a black-silver color and a metallic to dull luster. Since it resembles metallic lead, it is also colloquially called black lead or graphite.…

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