LUHAI Energy Co could provide slick drill collar, spiral drill collar, non-magnetic drill collar, flex non-magnetic drill collar with API certifications. Please send your specific requirements.
Luhai non-magnetic drill collars are made from non-magnetic materials with low-magnetic permeability. API monogram, serial number, OD,ID, type and size of connections are stamped on recessed mill flats.Продкуция изготовлена из малопрочных немагнитных материалов, на выточке указываются .АPI, номер печи, наружный диаметр,внутренний диаметр и тип присоединения.
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