Tam sim no, muaj ntau pawg tseem ceeb ntawm cov txheej txheem rov ua dua tshiab rau tungsten carbide.Ib qho yog hu ua txoj kev kho kub kub, uas suav nrog: txoj kev saltpeter melting, cua oxidation sintering method, oxygen calcination method, thiab lwm yam.lwm yam yog mechanical crushing txoj kev, whi ...
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