Rock liluho irinṣẹ olupese Prodrill, DTH Drill Pipes
DTH lu ọpọnti wa ni lilo fun sisopọòòlù DTHatiDTH bọtini die-dieapata lu die-die, ti won ti wa ni se lati seamless
awọn tubes.Awọn tubes ṣe ipa pataki ninu gbogbo awọn liluho DTH, laibikita ohun elo, iru apata, ijinle iho tabi rig.Awọn ẹya pataki ti tube DTH ti o ga julọ jẹ agbara, deede ati iṣakoso.

GBOGBO awọn tubes lilu DTH jẹ welded edekoyede, ati nigbagbogbo awọn okun jẹ awọn asopọ API boṣewa, bii 2 3/8 ″

API REG thread, 3 1/2 ″ API REG o tẹle tabi API IF o tẹle, bbl Ni ibamu si ibeere awọn onibara, lati 1000mm si 5000mm gigun ti awọn tubes, OD a le pese 50mm, 60mm, 76mm, 89mm,102mm