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Changzhou Oilfield Petroleum Equipment Co., Ltd.
Changzhou Oilfield Petroleum Equipment Co., Ltd.
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API Tool joints cross over subs for drilling tools

Changzhou Oilfield Petroleum Equipment Co., Ltd.
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API Tool joints cross over subs for drilling tools

API Tool joints cross over subs for drilling tools

Tool joints of our company are made of modified alloy steel, then fully heat treated. So the mechanical properties in accordance with API standard, such as hardness, strength and impact strength are ...

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