Neodymium (low valent)
Neodymium, denoted by the symbol Nd and possessing an atomic number of 60, classifies as a chemical element. As the fourth entity within the lanthanide sequence, it is categorized among the rare-earth metals. Characterized by its hardness and slight malleability, this silvery metal undergoes ...
危险品化学品经营许可证（带存储）