The main product series include permanent-magnet variable frequency air compressor, oil-free air compressor, two-stage compression screw air compressor, low-pressure screw air compressor, magnetic levitation air compressor, etc.
[pdf] Valaris Limited (previously ENSCO-Rowan plc) is an contractor headquartered in Houston, Texas, and incorporated in . It is the largest and company in the world, and owns 52 rigs, including 36 offshore , 11 , and 5 . In 2022, the company's largest customer was (15% of revenues).
[pdf] 
