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undefined,Other,China China
联系人 Arthur Hao
办公地址 undefined, Other
1.Allour Products have beenAPI7-1, ISO 9001, ISO9001:2008, ISO14001:2004. 2.Products are exported to various countries We have partners in the Unite
1The use of new surface wear-resistant materials, more effective use of positive and negative ions to prevent mud package more effectively. 2. Optimiz
we now have enough stocks for the roller cutter 8 1/2", IADC537&637, both metal bearing and rubber bearing available. We also have 9 7/8", 10
We have different sizes of rotary drilling barrel andSpiral drill. We have a thickened base.Exclusive precision measuring tool.Hi
1.The use of new surface wear-resistant materials, more effective use of positive and negative ions to prevent mud package more effectively. 2. Optimi
1. All our Products have beenAPI7-1, ISO 9001, ISO9001:2008, ISO14001:2004. 2. Products are exported to various countries We have partners in the Un
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