News

API 5CT N80 double value of oil exports	2013-12-03
the use of API 5CT N80	2013-11-29
API 5CT J55 special thread processing	2013-11-27
decentralized API 5CT N80	2013-11-25
API 5CT J55 casing is to maintain the oil well operation lifeline	2013-11-22
the coupling in API 5CT N80	2013-11-20
a buttress thread API 5CT N80	2013-11-17
API 5CT N80 fault	2013-11-17
API 5CT J55 price shocks	2013-11-17
the API 5CT J55 of high prices	2013-11-17