shamirzaei have happened in the past one year, that is, now this relation between. the trade society and the maadiyan system have been established, which means that if someone wants to come through the trade society system and send his electronic invoice, it is possible that if he comes and registers his information in the trade society system, this information will come and be entered in the system . maadian, so to speak , is not only for gold sellers, it means that they should express and register their business in the system. no, you see, we register all goods in saman jamjad, but the method of registration is very different. basically , there are several groups of goods that are classified as smuggling and in fact examples. note 4 of article 18, the name itself is different, for example, oil products are different, medicines are different, gold, jewels and precious stones have a special name, so we have what it means to register in the system. there is no special business for gold dealers, only some of the rules of that recipe are specific to gold, that is , the