| 摘要 |
A movable positioning holder of storage rack comprising a flank board, a hook joint on top bent backward, a vertical supporting board on the front center of the holder, a sucking disk fixed onto the supporting board or a screw and a nut pass through the supporting board. Two frame stems are on the hanging location of the holder, a horizontal rod links between the two frame stems. The hook joint of the holder hangs on the horizontal rod, two flank boards stick on the surface of the two frame stems. The corner of the shelf board is placed on top of the sucking disk or fixed with screws and nuts on the supporting board.
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