QYS-10IIIB telescopic truck-mounted crane
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Model O. D 444.5mm

Oil Drill Collar 6 1/4"-Nc46 with API Spec 7-1 O. D 444.5mm, listed by Shijiazhuang Coal Mining Machinery Co., Ltd in Shijiazhuang, Hebei. Certification API SPEC 5DP SY/T5561-2008, key words Drill Collar, API 7-1, Drilling Tool and processing Forging And Integral Heat Treatment are among the specifications published.
| Certification | API SPEC 5DP SY/T5561-2008 |
|---|---|
| Key Words | Drill Collar, API 7-1, Drilling Tool |
| Processing | Forging And Integral Heat Treatment |
| Material | High strength steel |
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