1. Oil leh natural gas ang chi energy resources phurh chhuah .
Seamless leh welded steel pipe hmang hian energy resources oil leh natural gas te chu phurh theih a ni. Globalization a chak chhoh zel avangin international oil leh natural gas transmission rintlak leh him tak mamawhna a sang chho zel a, hei hian steel pipe industry hmasawnna a tichak hle bawk.
2. Tui, chemical, etc. phurh chhuahna.
Steel pipe hi tui, gas, chemical, etc. phurh chhuahna atan pawh hman theih a ni a, transmission pipeline dang nena khaikhin chuan steel pipe hian pressure resistance sang zawk, corrosion resistance, leh wear resistance a nei sang zawk a, chuvangin aviation, chemical engineering, metallurgy, leh field dang dangah te hman a ni nasa hle.