#Needle #coke, tseem hu ua acicular coke, yog cov roj av crystalline coke siv hauv kev tsim cov electrodes rau cov hlau ua cog Peb qhov ntsuas tus nqi tiag tiag hauv qab no: Ash≤ 0.5%, VM ≤0.5%, noo noo 0.14%, S ≤0.5%, FC> 99%
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