Arung arai ni: Magnetic chyinghka shingnip ni hta daw lahkawng lawm ai: chyinghka shingnip hta n-gun rawng ai magnetic strip hte shingnip shingna hta n-gun rawng ai magnetic strip.
Hpaga lam hte wan hpe ninghkap lu ai atsam: Magnetic chyinghka shingna nkau mi hta wan hpe ninghkap lu ai -hkum hkrang hte ka-up da ai galvanized steel keels ni hpe lang da ai. Dai hta n-ga, wan-hkap la lu ai hte n-gun n-gun n-rawng ai arung arai nnan ni rai nga ai expanded perlite hpe mung bang mai ai majaw, wan n-gun grai ja ai hte n-gun n-rawng ai hpe grai kaja hkra galaw lu ai.
