石油套管 meaning in Chinese

petroleum casing pipe
pipe for oil field

Well - site transportation and inspection criterion for oil casing
石油套管现场检验与运输
Computer control system in casting pipe - processing line
石油套管加工生产线计算机控制系统
Rules for the inspection of casing and tubing for import and export
进出口石油套管油管检验规程
Verification regulation of casing and tubing round thread working
石油套管圆螺纹工作量规检定规程
Petroleum casing pipe , oil well pipe
石油套管油井管等

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