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API 7-1 Rere Rere Rere
Ka mutu te rere o te wai ki runga i te aho drill ki te whana te puia me te moka ki raro. Ka taea e LANDRILL te whakarato i te kounga moni Ki te whakatuwhera i te piha haumaru (FOSV), Kelly valve, Inside blowout preventer(IBOP), Drop-in check valve , Rere marenga.
Rūma 703 Whare B, pokapū Greenland, Rohe whanaketanga Hi-tech Xi'an, Haina
86-13609153141
