Hello; I guess the stand is in two sections so it will fit thru a door? Looks plenty strong.
One thought came to mind and may not be needed. I see how the sections slide together and that there is a smaller bit that inserts into the female opening on the right in the pictures. I see the bolt heads that secures the two sections. Cannot tell from the pictures if there may be any flex where the two sections join. If there is any up- down movement at all, consider a small verticle brace between the bolts. By that I mean a short length of metal, maybe angle iron, with holes drilled to match where the bolt heads already are. This might give some extra verticle support in the center of the stand. Maybe four short ones from the bottom rail to the lowest shelf or even two long ones on the outside ends from the bottom to both shelf level with two short ones bracing the lowest shelf. Could use the existing bolts if they are long enough.
Good luck