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.
Noun. 1. reciprocity-a relation of mutual dependence or action or influence. reciprocality. relation-an abstraction belonging to or characteristic of two entities or parts together.