(LSAW - Longitudinal Submerged Arc Welding), inali yofanana ndi kuwotcherera pamanja (LSAW - Longitudinal Submerged Arc welding), yomwe inali yofanana ndi kuwotcherera pamanja kwa LSAW-Longitudinal Submerged Arc kuwotcherera. Malowa ndi omwe ali ndi zotsalira za nkhungu, koma slag si electrode yokutidwa. Ndi yapadera pa melting flux. Dongosolo la zokutirali lili ndi fanjelo wowotcherera kudzera papaipi kupita kutsogolo kwa flux.

Zisanu waya kumizidwa arc kuwotcherera waya awiri ayenera kusankhidwa malinga ndi kuwotcherera panopa, pamene panopa 5 mawaya mu awiri waya awiri kuti azolowere osiyanasiyana panopa, mungagwiritse ntchito chimodzimodzi waya awiri kuphatikiza. Zisanu mawaya kumizidwa arc kuwotcherera panopa ndi arc voteji zoikamo, mukhoza akanikizire 1 silika mkulu panopa, voteji pang'onopang'ono kusintha kwa mawaya asanu ang'onoang'ono panopa ndi voteji. Pakutsika kwapano kwa 10% mpaka 30% ya mzerewo ukuchepa pang'onopang'ono, arc mu 1 ~ 3 V voliyumu yawonjezeka pang'onopang'ono.