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Location:Home » Welcome to Shanaxi hai nai sen Petroleum Technology Co.,Ltd
MoreElite MoreIntroduction ![]() Shanaxi hai nai sen Petroleum Technology Co.,Ltd. has many excellent experts, they are engaged in research of diamond bit, geological mining bits, design and manufacture. using advanced technology at home and abroad, aiming at different strata, geology, mine design diamond bits for oil of PDC , various types of Diamond Core Bits, geological mining drill bit, company also produce grinding shoes, set of downhole tools such as mill. http://www... [Detailed] MoreLatest |