The screw of twin-screw plastic extruder is complex, its structure and parameters determine extrusion process.
双螺杆塑料挤出机中的螺杆较为复杂，螺杆的结构和参数对挤出过程起决定作用。
Accessories package: protect ring, plastic cap screw.
配件包：护线圈及胶帽螺钉。
It can use constant power to screw capping the plastic caps.
拧盖力矩无级可调，具有恒力矩旋封塑盖功能。
It can use constant power to screw capping the plastic caps.
拧盖力矩无级可调，具有恒力矩旋封塑盖功能。
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