91/2" HS952XA de bună calitate API Specificatii cel mai mic pret petrol din oţel corp PDC burghie

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	81/2" HM352XA High Quality Center tom chaw tsim tshuaj paus Standards PDC laum ntsis rau Directional Drilling	chaw tsim tshuaj paus directional drilling, kub muag, pdc laum ntsis, pob zeb diamond laum khoom, roj oilfield
	81/2 «HM642XG Горячие продать сверла биты Китай карбид нефти сверло	H-ВОВ-матрица размера M 6-РЕЗЕЦ 6 4-4 лезвия 2-префектура уровне иерархической X-одной строки G-PDC РЕЗЕЦ сделал в Китае
	PDC Arc גלעון מקדחים	עם מפעל מקצועי ופורה,Website:, HAINAISEN הוא אחד המובילים בסין pdc הקשת גלעון קודח הסיביות יצרנים. ברוכים הבאים arc pdc הסיטונאי גלעון מקדחים מאיתנ...
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	121/4" HS962XA 2015API olie godt PDC bore Bit & Gas godt PDC borehoved For vand godt, oliefelt, naturgas	oliekilde borehoved,Website:, pdc borehoved, gas nå borehoved, oliefelt, naturgas bore bit fabrikanten borehoved, Kina, fabrik

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