Ana amfani da bitar Tricone sosai don hakowa na jujjuya, galibi ana amfani da su don tono manyan ramuka da ramukan samarwa a cikin manyan ma'adinan rami, buɗaɗɗen ramin, hakar mai, da sauran filayen.Akwai rukuni biyu na manyan hakowa na jujjuya: (1) murƙushe rotary ta hanyar lodi mai tsayi zuwa dutsen daga mazugi uku, da ...
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