Ho tloha qalong ea 2014, litheko tsa lihlahisoa tse tala tsa tungsten li ne li ntse li theoha, boemo ba 'maraka bo boemong bo sa tsitsang ho sa tsotellehe hore na' marakeng oa malapeng kapa 'marakeng oa mose ho maoatle, tlhokahalo e fokola haholo. Indasteri eohle e bonahala e le mariha a batang.

Ha e tobane le boemo bo tebileng ba 'maraka, k'hamphani e etsa boiteko bo bong le bo bong ba ho qapa mohlala oa thekiso le ho nts'etsapele liteishene tse ncha tsa thekiso, hajoale, k'hamphani e fana ka lihlahisoa tse ncha' marakeng e le hore e fumane monyetla o mocha le likarolo tse ling tsa 'maraka.

Karolong ea pele ea 2015, thekiso ea lihlahisoa tse ka sehloohong e ile ea eketseha hape ha e bapisoa le nako e tšoanang selemong se fetileng, motheong oa hore thekiso ea 2014 e ile ea eketseha haholo khahlanong le thekiso ea 2013.

Litheko tsa thekiso ea li-tungsten metal powders le carbide powders li fihlile ho lithane tse fetang 200 tsa metric khoeli le khoeli likhoeling tse tharo tse sa tsoa feta. Thekiso e fihlile holimo historing. Ho fihlela bofelong ba Phuptjane, litheko tsa thekiso ke 65.73% ea thekiso e reriloeng ea selemo sena, le eona e phahame ka 27.88% ho feta thekiso ea nako e tšoanang ea selemo se fetileng.

Palo ea thekiso ea carbides e entsoeng ka samente e phahame ka 3.78% ho feta thekiso ea nako e tšoanang ea selemo se fetileng.

Palo ea thekiso ea lisebelisoa tse nepahetseng ke 51.56% ea thekiso e reriloeng ea selemo sena, 'me 45.76% e phahame ho feta thekiso ea nako e tšoanang ea selemo se fetileng, e boetse e fihlile holimo historing.