Enwere ọtụtụ ụzọ isi belata tubes nchara carbon, dị ka ịkpụ gas oxyacetylene, mbelata plasma ikuku, ịkpụ laser, ịcha waya, wdg, nwere ike belata nchara carbon. E nwere ụzọ igbubi anọ a na-ahụkarị: (1) Usoro igbu ọkụ: Usoro ịkpụ a nwere ọnụ ahịa ọrụ kacha ala, mana ọ na-eri mmiri karịa.
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