heavy-wall pipe 厚壁管
cold-draw heavy wall pipe 冷拔厚壁管
cold draw heavy wall pipe 冷拔厚壁管
cold-drawing heavy wall pipe 冷拔厚壁管
heavy wall drill pipe [油气] 厚壁钻杆
heavy wall seamless steel pipe 厚壁无缝钢管
The causes of inner transversal crack of cold-draw heavy wall pipe of 45 steel were analyzed.
针对45钢冷拔厚壁管存在内表面横裂纹问题，分析了其产生的原因。
The temperature field and the thermal stress state of multilayer Wall pipe have a heavy effect on the reliability of structure.
多层圆管结构在不稳定导热过程中的温度场及其热应力状态，关系到结构的安全可靠性。
Structural steel products include I-beam fabrication, custom heavy wall tube, pipe, Angle iron, channel, etc. All to meet construction industry specifications.
结构钢产品项目包括I形梁制造和定制厚壁钢管、管材、角钢、通道等。制造的所有产品均符合建筑行业规范。
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