KAWAT LAS LISTRIK KOBE LB-52-U UKURAN 3,2x4,0 MM KEMASAN PER KG WELDING ELECTORDES TEMBAGA ELAS LISTRIK STAINLESS STEEL PENGELASAN PADA BESI BOCOR RETAK DAN PATAH SILINDER CYLINDER HEAD MESIN RANGKA KENOPI PAGAR STENLES STAINLIS STENLIS STAYNLES STAYNLIS