LRTM ndi njira yotsekera yopangidwa ndi nkhungu yomwe imaphatikiza mbali zonse za RTM yachikhalidwe komanso kulowetsedwa kwa vacuum.Mu LRTM, preform yowuma ya fiber imayikidwa mu nkhungu yotsekedwa, ndipo chopukutira chocheperako chimayikidwa kuti chichotse mpweya mu nkhungu.Kenako utomoni umalowetsedwa mu nkhunguyo pansi pa kukanikiza pang'ono, kusuntha mpweya ndikulowetsa ulusi.Njira yopangira LRTM ya Jiuding imapanga chinthu chosalala mbali zonse, chowongolera makulidwe, komanso osatulutsa mpweya.
