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- X80钢级直缝埋弧焊管X80 steel SAW straight welded tube
- X65钢级直缝埋弧焊管X65 grade LSAW pipe
- 通过夏比冲击试验和落锤撕裂试验(DWTT),测得国产X80级直缝埋弧焊接钢管低温韧性。It obtains low temperature toughness of China made grade X80 LSAW pipe by Charpy impacting test and DWTT.
- X80钢卷X80 plate coil
- 进行了L415MB(API 5L X60 PSL2)级油气输送用直缝埋弧焊管中厚钢板的工业试验研究。Trial - production of L415MB(API 5L X60 PSL2) pipeline plate has been fallen out.
- X80钢与WPHY80钢X80 and WPHY80
- 油气输送用螺旋缝埋弧焊钢管订货附加技术条件中几个常见问题的讨论Discussion on Several Ordinary Problems on Additional Technical Conditions of P. O. Of SSAW Pipe for Oil and Gas Transmition
- X80/X100钢级X80/X100 grade
- 直缝埋弧焊管扩径机的应用Diameter-Enlarging Machine Application of Longitudinal Submerged Arc Welded Pipe
- 林冠级canopy class
- 二三级城市Sub-cities
- 平面埋入式进气道的数值仿真研究与试验验证Numerical Analysis and Experimental Validation of a Submerged Inlet on the Plane Surface
- 直缝焊管所需带钢宽度计算公式探讨Discussion on Formula for Calculation of Width of Steel Strip Used for Weld Straight Pipe-making
- 埋弧焊焊缝Submerged-arc weld
- X80级螺旋埋弧焊管X80 grade SSAW pipe
- 厚壁容器的双丝窄间隙埋弧焊Double-wire Narrow Gap SAW of Thick-wall Pressure Vessel
- 埋弧焊钢管内焊渣皮回收方式探讨Discussion on Reclaiming SSAW Pipe Inside Welding Slag
- 埋弧焊钢管倒棱机工艺布局方式的探讨Discussion on Process Layout of Chamfering Machine for SAW Steel Pipe
- 浅谈螺旋埋弧焊钢管的焊缝外观形状控制Discussion on Weld Bead Visual Appearance Control of SSAW Pipe
- 埋弧焊自动跟踪系统中线阵CCD视觉传感器的研究Development of linear CCD vision sensor used in automatic tracking system of submerged arc welding