Through analyzing the principle of the bundling of steel bar and the automatic binding machine, an advanced new preshaping mechanism of bundling was designed.
通过对棒材打捆成形原理及自动打捆机的分析，提出了一种新型棒材预成形方案。
2
Many factors affecting cell nucleation and cell growth among the extrusion process such as preshaping pressure, melt temperature, melt viscosity, interfacial tension, take-up speed and the te.