1. Arc welding: Arc welding gaw grau nna lang ai welding ladat langai rai nna, lata hte galaw ai arc welding galaw ai jak ni hpe mung lang mai ai. Arc welding hpe lang ai shaloi, shawng nnan cylinder a shinggan maga hpe grind galaw nna, laksan welding arung arai ni hte jahpring nna, arc welding hte weld galaw u. Welding n ngang kang ai rai yang, grau kaja ai mahtai ni hpe lu la na matu, nang hpe jahpring, grind galaw nna, kalang lang weld galaw mai ai.
2. Gas welding: Gas welding ngu ai gaw htunghking hku welding galaw ai ladat re. Arc welding hte n bung ai sha, shi a welding flame tsan ai shara ni grau ni ai majaw, npu na- aten kadun welding galaw ai aten nkau mi a matu htuk manu ai. Gas welding hpe lang nna hydraulic cylinders ni hpe lang ai shaloi, wan n-gun hte welding n-gun hpe gram lajang nna, htuk manu ai welding effect hpe lu la na matu ra ai.
3. TIG welding: TIG welding gaw laksan welding ladat langai rai nna, n-gang, aluminum, magnesium, titanium, etc., n-gang arung arai law law hpe welld galaw lu ai.
