Special silicon screw, screw chamber, machine head, dies to protect inside vulcanize structure.

硅胶专用螺杆、螺筒、机头、眼模及配套防止内部硫化结构。

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Outward pull hydraulic jack from the side so that the screw from the inside.

向外拉液力端使螺丝从插孔内脱离。

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Sink hexangular screw inside the head;

沉头内六角螺丝；

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Sink hexangular screw inside the head;

沉头内六角螺丝；

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