Imibhobho yokomba ye-DTH idlala indima ebalulekileyo kuko konke ukugrumba kwe-DTH, kungakhathaliseki uhlobo lwamatye, ubunzulu bomngxuma okanye isixhobo sokomba.

Iimpawu eziphambili ze-tube ye-DTH ephezulu zizinzileyo, ukuchaneka kunye nokulawula.

 Umbhobho woQhaphaza :

1.Umzimba wombhobho: umbhobho obandayo wozoba umthungo ongenamthungo.ngoko ke umbhobho unobungakanani obuchanekileyo, i-centerizer elungileyo.
2.Impahla yomzimba wombhobho ikwibakala elifanayo neleSandvik.
3.Isinxibelelanisi soMsonto : Ubushushu kunye nonyango lwe Nitrogen , ngoko ke umbhobho womelele kwaye kulula ukuwulayisha nokuwukhulula .
4.I-Friction welding.

Umbhobho wokomba weDTH oMgangatho:

Ububanzi: 76mm, 89mm, 102mm, 114mm, 127mm, 140mm;

Ubude: 1000mm, 1500mm, 2000mm, 3000mm, 5000mm, 6000mm;

Umsonto: 2 3/8” API REG, 2 7/8” API REG, 3 1/2” API REG, 4 1/2” API REG,

2 3/8 API IF, 3 1/2 API IF