Ukadaulo wowotcherera wa arc womwe umagwiritsidwa ntchito pamapaipi akulu akulu akulu wokhuthala amakhala ndi mawonekedwe apamwamba kwambiri, kupanga bwino kwambiri, kulibe kuwala kwa arc ndi utsi wochepa.Amagwiritsidwa ntchito kwambiri mu chotengera choponderezedwa, kupanga chitoliro choyenera, mtengo ndi mzati, madzimadzi otsika komanso zitsulo zamapangidwe.Large m'mimba mwake wandiweyani khoma welded chitoliro zikuphatikizapo lalikulu m'mimba mwake molunjika msoko wandiweyani khoma welded chitoliro ndi lalikulu m'mimba mwake mozungulira wandiweyani khoma zitsulo chitoliro.Mfundo zazikuluzikulu zazikulu zowongoka msoko wokhuthala khoma zitsulo chitoliro ndi gb/t3091-2008, gb/t9711.1-1997 ndi API 5L mfundo.