| 摘要 |
A mullion assembly for a door unit is adjustably attachable to support structure via a connector part. The assembly includes: (a) an elongated upright million member having T-shape in horizontal cross section, and (b) a foot bracket at an end of the mullion member and being adjustable for connecting the bracket to support structure so that the bracket can be shifted horizontally relative to the connector part fixed to the support structure, and then attached to that part, (c) the foot bracket having T-shape in horizontal cross section to interfit the T-shape of the mullion for blocking sideward motion of the mullion relative to the bracket.
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