hat
Li twa deseni yo depi aliminyòm alyaj sèvi ak machin fif ki te aplike nan endistri lwil oliv ak anpil eksperyans ki t' ap soti nan Lawisi ak lòt départements ansyen Inyon Sovyetik la.
eng
Its a few decades since the aluminum alloy drill pipe has been applied in the oil industry with most experience coming from Russia and other counties of former Soviet Union.