您要查找的是不是:
- P110钢级石油套管P110 oil casing
- J55级石油套管J55 class oil pipe
- N80级石油套管在线形变热处理工艺On-line Thermomechanical Treatment Process for N-80 Grade Oil Casing
- P110钢P110 steel
- 由新日铁ERW套管看我国高钢级ERW套管的发展The Development of China High Grade ERW Casing From the View of Nippon ERW Casing
- 钢厂steelworks
- PLC技术在石油套管生产线上的应用Application of PLC Technology in Petroleum Casing Product Line
- 碳钢carbon steel
- 级联connection
- 钢的steel
- 校级field rank
- 钢带metal strip
- 石油套管petroleum casing pipe
- 大学英语四级College English Band 4
- 钢化steel
- J55石油套管J55 steel grade for oil casings
- 船级ship' classification
- 铸钢cast(carbon) steel
- 三级片third-grade film
- 钢制steeliness