I kēia manawa, aia kekahi mau ʻano nui o nā kaʻina hana recycling no ka tungsten carbide. ʻO kekahi ka mea i kapa ʻia ʻo ke ʻano mālama wela kiʻekiʻe, ʻo ia hoʻi: saltpeter melting method, air oxidation sintering method, oxygen calcination method, etc.;ʻO ka mea ʻē aʻe, ʻo ia ke ʻano mechanical crushing, whi...
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