Powder metallurgy tungsten kazhinji ine tsanga yakanaka, iyo isina chinhu inowanzo sarudzwa nepamusoro tembiricha yekuforoma nekukunguruka nzira, tembiricha inowanzodzorwa pakati pe1500 ~ 1600 ℃.Mushure mekushaikwa, tungsten inogona kuwedzera kukungurutswa, kuumbwa kana kuruka.Bepanhau...
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