Special arung arai ni hku nna, sau shingnip hte hka htung ni gaw sau shapraw ai hta manu n dan ai lit nga ai. Shanhte gaw hka htung kata na casing hte drill pipe hpe atsawm sha makawp maga ya ai majaw, hka htung hkrat sum ai lam hte grup yin hpe awu asin byin ai lam ni hpe pat shingdang ya lu ai, dai hku nna sau sutgan ni hpe shaw la nna makawp maga lu ai. Dai majaw, daini na sau shapraw ai masa hta sau shingnip hte hka htung ni gaw galai shai n mai ai ahkyak ai lam rai nga ai.
Masat masa ni
CE masat laika
ISO 9001 masat laika
API Q1 masat laika
ABS masat laika
AP-5L masat laika
API-5CT masat laika
