ZONKE iityhubhu zokuqhuba i-DTH zi-friction ezidityanisiweyo, kwaye ngokuqhelekileyo imisonto iludibaniso oluqhelekileyo lwe-API, njenge-2 3/8″ i-API REG intambo, i-3 1/2″ intambo ye-API REG okanye i-API IF intambo, njl. Ngokutsho kwesicelo sabathengi, ukusuka ku-1000mm ukuya 5000mm ubude iityhubhu, OD sinokunikela 50mm, 60mm, 76mm, 89mm, 102mm

Iintsiba zeemveliso:

1:I-Nitriding kumsonto wentonga edibeneyo ukuphucula ubulukhuni bomphezulu wentambo kunye nokwandisa ukuxhathisa ukunxiba kwentambo.
I-2: Ukusebenzisa i-R780 njengezinto zomzimba wentonga ukuphucula ukuxhatshazwa kunye namandla, i-42 Cr Mo izinto zokudibanisa intambo.
3:Yamkela unyango oluphazamisayo ukunciphisa ubunzima bentonga ngelixa ugcina amandla e-welds (ubukhulu beumbhobho wedthyi-6.5mm ngelixa indawo ye-welds iyi-8.5mm).