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API 7-1 wiliwili kaula kiwi
Hoʻopau nā kiwi kaula wili i ka wai mai ke kahe pinepine ʻana i ke kaula drill inā e kīkī ka drill me ka ʻuʻuku o lalo. Hiki i ka LANDRILL ke hāʻawi i ka maikaʻi maikaʻi ʻO ka piha palekana wehe piha (FOSV), Kelly valve, Inside blowout preventer (IBOP), Drop-in check valve , Puka lana.
Keena 703 Hale B, Greenland kikowaena, Hi-tech development zone Xiʻan, Kina
86-13609153141
