Ikusasa lengilazi liyakhuphuka ngamandla futhi, izinkontileka ezingu-1609 kusukela ngaphansi kuka-973 yuan/ton, ziphindela ekuphakameni kwakamuva okungu-1060 yuan/ton, okukhuphuke cishe ngo-9%. Esikhathini esimaphakathi, nokho, leli gagasi lokuphindaphindeka kwezinkontileka ezingu-1609 alinakusimama, kamuva ku-930-930 yuan/ton range oscillation of probability likhulu. I-sp...
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