5. Install the lower door
6.Tighten the screws of the middle hinge on the reversible side.
7、Install the top door and remove the existing top door block. Install a new top door
block (not the same one) on the reversible side. Screw it down.
7.Move the hinge to another side of the box after removing the screws on the hinge; Use
screws to fasten
8.Install the hinge cover after fastening the hinge
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