| 摘要 |
The packing (11) comprises a multiplicity of rigid layers (1) stably but movably stacked one above the other, each of which layers (1) has at least one through-hole (2) , destined to support peripherically by geometrical interference, at least one corresponding tray (3), the through-hole (2) being of a depth at least equal to the smallest height of the trays (3) to be used, so that one or more through-holes (2), vertically aligned, are able to contain trays (3) of arbitrary height. <IMAGE>
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