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DC Grand Graphite Qws Vuam Arc Gouter Carbon Qws Carbon Qws Hluav Taws Xob Hluav Taws Xob
Kev tsim tawm arc ntawm cov nqaj hlau thiab cov hlau hauv paus, thiab kev tshem cov melted metals los ntawm kev kub siab nyob ib ncig ntawm cov pas nrig carbon.
