The cage frame is cylindrical and is made of metal wires, and the cage frame can be pressed, stacked or expanded along axial direction.
笼框为圆柱形，由金属丝制成并可沿轴向压叠或伸展；
The cage frame is cylindrical and is made of metal wires, and the cage frame can be pressed, stacked or expanded along axial direction.
笼框为圆柱形，由金属丝制成并可沿轴向压叠或伸展；
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