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- J55石油套管J55 steel grade for oil casings
- J55级石油套管J55 class oil pipe
- CSP线铌微合金化直缝焊石油套管用钢J55的开发Development of Nb-microalloyed J55 Hot Rolled Strip Used for ERW Casing For Petroleum in Baotou CSP Plant
- P110钢级石油套管P110 oil casing
- 石油套管螺纹多功能量具校验仪Multifunctional Master Gauge for Oil Casing Thread Gauges
- J55焊管J55 welded pipe
- J55热轧带钢Hot rolled strip J55
- PLC技术在石油套管生产线上的应用Application of PLC Technology in Petroleum Casing Product Line
- 石油套管petroleum casing pipe
- 化学成分对ERW油井管用J55热轧钢带组织性能的影响Effect of Chemical Composition on the Microstructure and Performance of J55 Hot Rolled Strip Used for ERW Casing Pipe and Tube
- ERW石油套管钢ERW oil casing steel
- 他们那时正在沙漠中勘探石油。There were prospecting for oil in the desert.
- 开发海底石油to exploit the oil under the sea
- 他们正在探测石油。They are testing for oil.
- 一桶石油要多少钱?How much does a barrel of oil cost?
- 石油套管用钢steel for oil casing
- 这片土地盛产石油。This land is rich with petroleum.
- 墨西哥在石油方面可自给自足。Mexico is self-sufficient in oil.
- 他是一家石油公司的大股东。He is a major stockholder in an oil company.
- 煤和石油是天然物产。Coal and oil are natural products.