| 摘要 |
A cushioning packing spiral is formed from a long strip of material having a predetermined width and continuously coiled using a spiral-forming machine and cut into different lengths using a rear-mounted cutting mechanism. The cushioning packing spiral has a spiral pitch to provide desired axial tensile elasticity and radial height, so that a plurality of the cushioning packing spirals may be randomly positioned in a packing container to form a cushioning layer, which provides not only changeful decorating effects, but also good air permeability and buffering effect in the packing container.
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