made of excellent polyurethane from well known companies in the world and in standard inch and metric sizes.Urethane seal rings can be made in custom profiles and configurations that are customized to your specifications. Yantai Zhengyuan Polyurethane Co.,Ltd. ’Rubber elasticity,Metal Broad range of adjustable hardness
· Oil and solvent resistant
· Excellent noise abatement properties
· So the polyurethane seal rings , aging
Not for use with: alcohols, hot water, steam