HIgh boleng ba thepa e boima
Batšireletso ba mochini oa API ke likarolo tse hlokahalang bakeng sa Casing, Tubing, liphaephe tsa ho cheka le 'mala oa ho cheka tse ka sirelletsang khoele ea pheletso e' ngoe le e 'ngoe.
Haholo bahlahisi ba Thread ba ka thibela likhoele tsa hau tsa khokahano le pheletso ea lipeipi hore e se senyehe nakong ea ho ts'oara, lipalangoang le polokelo.
Ngola molaetsa oa hau mona 'me u re romelle ho rona