GUARNIZIONE PIANA, IN PARTICOLARE GUARNIZIONE DI TESTATA.

摘要

In a gasket made of a fibrous and/or porous material impregnated with a polymerizable saturating agent which is partially polymerized only to a plastically deformable consistency, an additive which prevents complete polymerization and hardening is applied to the surfaces of the gasket after impregnation with the saturating agent and partial polymerization.