In order to increase production efficiency of PDA cases output on plastic jetting-moulding machine, the auto-loading screw device of robot is developed.
为了提高用注塑机生产掌上电脑外壳的生产效率，研制了机械手自动加螺丝装置。
This thesis introduces the construction character of directional throttle proportional valve and the application of this valve to large-scale plastic Jetting-moulding machine.
通过对电液比例方向节流阀控制大型注塑机的注塑成形过程分析，介绍了比例方向节流阀的结构特点和在大型注塑机中的应用。
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