|
|
Build Your Online Product Catalogs?
The spiral drill collars are made of 4145H modified chromium-molybdenum alloy steel according to API Spec 7 and aSY/T 5144 . All threads can be phosphated,copperised or cold worked. All threads are machined with CNC Lathes-Double-Shouldered and a special thread, the max diameter of spiral drill collar is 14 inch.
Out diamete: 3 7/8"~ 14"(inch)
Depth of cut: 4.0 ~ 11.9 (mm)
Length: 9150+150(mm)
|
| Company: |
Beijing Metalwork Technology Trade Co.,Ltd
|
| Contact: |
Mr. Feng Bo |
| Address: |
Beiyuan,Tongzhou District,Beijing |
| Postcode: |
101100 |
| Tel: |
86-010-52891298/010-81596908 |
| Fax: |
010-81596908 |
| E-mail: |
|
|
|
|
Home
