spiral drill collars
Payment & Shipping Terms:
| Minimum Order Quantity: | 10 Piece/Pieces |
|---|---|
| Payment Terms: | L/C,T/T |
Detailed Product Description
The drill collars are made of 4145H modified chromium-molybdenum alloy steel according to API Spec.7 and SY/T5144.All threads can be phosphated, copperized or cold worked.All threads are machined with CNC Lathed-Double-shouldered and a special thread, the max diameter of drill collar is 14 inch.
spiral drill collars
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Company Info
Beijing OCEAN RENDA Petroleum Equipment Co., Ltd.
[China (Mainland)]
[Verified Member]
City: Beijing
Province/State: Beijing
Country/Region : China (Mainland)
Business Type:Manufacturer, Trading Company
Online Postings: Products