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15F,No.3 Building,Futian Fortun Plaza,Hanghai East,Zhengzhou China,Zhengzhou,Henan,China China
ThedrillcollarisaccordingtoSY/T5144-1997andAPI7-1"Specificationfor RotaryDrillStem&...
It's made from N1310 low carbon alloysteel and forged by strict chemical analysis. By testing its mechanical properties, we can ensure the materia
The Spiral Drill Collar is made from AISI 4145H modified alloy steel, and completely meets the requirement of API Spec7-1 and SY/T5144 Standard. It is
Contact Person Ms. Vivian Zhang
Address 15F,No.3 Building,Futian Fortun Plaza,Hanghai East,Zhengzhou China, Zhengzhou, Henan
We will contact you soon .
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