Whether it constitutes infringement of the exclusive right to use a trademark depends on whether Factory B uses a non-well-known trademark registered by Factory A on the same commodity. If you register a trademark, others can use your trademark as a trade name. If it is infringed, it is the copyright generated by your design trademark, not the trademark right. Now many enterprises' trade names have been registered by others, so these enterprises have not violated their trade name rights. Except for well-known trademarks or well-known trade names.