1.high elasticity 2.anti-aging 3.non-toxic high-temperature resistance 4.the ozone-resistant 5.anti-static Jing'an produced O-ring features are as following:high elasticity, anti-aging benefits, mainly non-toxic high-temperature resistance, ozone-resistant, anti-soluble, electrical insulation also has a very good performance, Our o-rings are used in the chemical industry, medicine, food, ...