Momwe mungapewere kutayikira kwa chitoliro chachitsulo chomwe chimagwiritsidwa ntchito popanga mapaipi
Kwa nthawi yayitali, chitoliro chachitsulo chokhala ndi welded chimakhala ndi zinthu zomwe zingagwiritsidwe ntchito mopindulitsa pamapaipi okwiriridwa. Pali zabwino zingapo za welded chitoliro cha mapaipi muutumiki monga mphamvu, kumasuka kwa unsembe, kuchuluka otaya mphamvu, kutayikira kukana, lon ...
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