首页>
外国专利>
Surface active agent copolimero silicone - polyeter; process for their preparation; copolimero; plate of foam.Rigid polyurethane foam and molded foam is highly resilient and formulation of wetting agent;
Surface active agent copolimero silicone - polyeter; process for their preparation; copolimero; plate of foam.Rigid polyurethane foam and molded foam is highly resilient and formulation of wetting agent;