¡¡¡¡The connection of type D250 is flange .So it strengthens the well head and easier ,Meanwhile it can also protect polished rob and seal well head up while trive head is being repaired.
| Special Well
Head ¡¡¡¡The connection of type D250 is flange .So it strengthens the well head and easier ,Meanwhile it can also protect polished rob and seal well head up while trive head is being repaired. |
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