Original control principle of hydraulic and electric system have been changed in de-sign of equipment to avoid defects such as folding, burning etc produced in upsetting of large air valve preform.
为防止大气门毛坯在热镦粗过程中产生的折叠、过烧等缺陷，在设计设备时改变了原有的液压控制和电气控制原理。
Materials often need to vertically fall into the entrance of the folding conveyor, because the material block or particle inertia impact, have broken or worn equipment may.
物料常常需要垂直落到输送机入口的折边上，由于物料块或颗粒的惯性会产生冲击，有碰坏或磨损设备的可能。
The same industry took the lead in the introduction of numerical control cutting, punching, folding and other advanced equipment, and his workshop is equipped with electrostatic spraying.
同行业中率先引进数控剪、冲、折等先进设备，并自己配有静电喷涂车间。
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