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| Henan Xin Chen Imp & Exp Co. Ltd | |
| New | |
| YES |
Product Descriptions
1. Material: AISI 4145H Alloy steel
2. Standard: API Spec .7 and SY/T5144.
3. All threads are phosphated, copperized or cold worked. All Connections are equipped with pressed steel thread protectors. All threads are machined with CNC Lathes-Doule-shouldered and special threads.
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