|
|
|
Hebei Yanshan Tianyuan Steel Pipes Factory
|
|
|
|
|
| |
|
 |
About Us
Now, this factory is provided with 2 production lines of double-side submerged arc welding spiral pipes with the specification (Φ219-1820) following the GB/T9711 standard, and the annual yield is 50,000 tons. In addition, there are 2 production lines of hot-rolled steel pipes for the product API GBB163, GBB162 with the specification (Φ159-Φ630), and the annual yield is about 40,000 tons. Also, there are two production lines of empty hole cold-drawing units with the specification (Φ25-Φ159), ...
|
|
 |
|
|
|
|
|
|
|
|