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Spring comprises steel sheet with rows of apertures which is wound into spiral, to form hollow cylinder
Spring comprises steel sheet with rows of apertures which is wound into spiral, to form hollow cylinder
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机译:弹簧包括带有成排的孔的钢板,这些孔成螺旋形缠绕,形成空心圆柱
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摘要
The spring comprises a steel sheet with rows of apertures (11). This is wound into a spiral, to form a hollow cylinder. The layers (15a - 15d) may be wound with a gap between them or directly on top of each other.
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