Njengamanje, kunezigaba eziningana eziyinhloko zezinqubo zokuvuselela kabusha i-tungsten carbide.Eyodwa yindlela ebizwa ngokuthi indlela yokwelapha yokushisa ephezulu, ehlanganisa: indlela yokuncibilika kwe-saltpeter, indlela ye-air oxidation sintering, indlela yokubala i-oxygen, njll.;enye indlela yokuchoboza ngomshini, lapho...
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