Machubu achitsulo osawoneka a petroleum kusokoneza

Oyeserera ma pitanitsi la fimace, kutentha kusinthitsa machubu ndi mapaipi mu mafuta a petroleum ndikukonzanso mbewu

Amagwiritsidwa ntchito popanga mapaipi ozizira ozizira, mapaipi amadzi otentha, mapaipi apamwamba owoneka bwino kwa omwe amapezeka oyendetsa ndege, ziphuphu zazikulu komanso zazing'ono mapaipi a arch, etc.

Kaboni kwambiri kaboni kwambiri; Zitsulo zojambula; Kutentha kwa kutentha kwatsopano