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Substructure
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    Details: Structural features of slingshot substructure:  1.The drill floor and the equipment on it can be installed at a low position; and the derrick is erected up to vertical position while the drill floor k...
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Dongying Haixin Petroleum Equipment Co. Ltd.
Add:Management Committee building,shengli industryzone,Xicheng, Dongying City zone,Shandong,China
Tel:+86-546-7755028
Fax:+86-546-7718870
E-mail:[email protected]

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