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For several years ,our co***ny have two intergral production lines for friction-welded drill rod have been imported from Japan,plus one complete production line for drill pipe tool joints.We also possess our own facilities for heat treatment of welds and tool joints,thread-cutting ,and other machining.Our range of testing facilities includes a German-made derect reading spectrometer,equipment for tensile,i***ct and hardness testing,plus magnetic particle and ultrasound inspction equipment.Applying Japanese ...
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| Company: |
China northlink trading co,.ltd
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| Contact: |
Ms. niu lihui |
| Address: |
Room 203, Building 19, West ring south street No 26, Beijing Economic and Technological Development Zone. Beijing, China |
| Postcode: |
100176 |
| Tel: |
+86-010-67856557-609 |
| Fax: |
+86-010-67856887 |
| E-mail: |
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