Polycarbonate Diols (PCD) are used for a wide range of polyurethane-based coating formulations, providing an extreme durability and a high performance to the final polymer. ok
In mathematics, a reciprocity law is a generalization of the law of quadratic reciprocity. There are several different ways to express reciprocity laws.
Reciprocity is the recognition of a license gained in one state by another. In other words, a person who passes the Massachusetts real estate licensing exam will be able to practice real estate in certain other states without being required to take another state's licensing course or examination, and vice-versa.