Aluminium and aluminium alloy extruded tubes - part 1 : seamless tubes 铝及铝合金热挤压管第一部分:无缝圆管
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The research and prediction of relative elongation of thick - walled tube without mandrel by open - die cold extrusion is the base of the design of tube parts and special equipment 摘要对于无芯棒开式冷挤压厚壁管件的相对伸长量的研究与预测是设计开式冷挤压管类零件反其专用设备的依据。
