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. n, pl-ities. 1. reciprocal action or relation. 2. a mutual exchange of commercial or other privileges. [C18: via French from Latin reciprocus reciprocal].