In fact, their answers are not completely correct ... First of all, it is necessary to clarify the relationship between Geology and Minerals and the Bureau of Geology and Minerals ... In the past, the Bureau of Geology and Minerals had a subordinate unit called Geology and Minerals Processing Factory ... The sales department it handled was called Geology and Minerals Jewelry Group Company ... But ... it should be noted that it was sold several years ago ... and it has nothing to do with the Bureau of Geology and Minerals .. Generally speaking, there are many .. But in order to ensure the quality ... !