Use: BSN-3 safety valve is one type of main valves used on land and self-elevating rig. It is used to control well flow and normally run inside or below the BOP. Its internal diameter is 3.03, ....
Yuanheng was founded in 1994 and located in the new technical development area of Baoji, Shaanxi province, covering an area of 6350 sqm. With a professional team of 120 people, Yuanheng is....