Mapaipi opangidwa ndi zitsulo zosapanga dzimbiri amagwiritsidwa ntchito kwambiri m'mafakitale a m'mizinda komanso m'mainjiniya okongoletsa; m'mafakitale opanga zinthu zopepuka, mankhwala, kupanga mapepala, kukonza zimbudzi, kupereka madzi, makina, ndi zina zotero, palinso gawo lalikulu; m'mafakitale opanga mankhwala, feteleza, petrochemical ndi mafakitale ena, mfundo zonse ndi Φ159mm. Mapaipi onyamula mpweya wapakati ndi wotsika pamwambapa; choletsa mpweya chagalimoto chimagwiritsanso ntchito mapaipi opangidwa ndi zitsulo zosapanga dzimbiri.

Mapaipi osapanga dzimbiri osapanga dzimbiri amagwiritsidwa ntchito makamaka mu "mankhwala atatu" (mankhwala, feteleza, ulusi wa mankhwala), mafuta, ma boiler amagetsi, makina, ndege, makampani a nyukiliya, makampani achitetezo cha dziko ndi madera ena.