| NBR | Resistant to oil,pressure and wear,good elasticity and mechanical strength;applicable to the mediums including water,oil,alcohol,etc from-20℃ to 100℃ . |
| EPDM | Resistant to high or low temperatures,ozone and chemicals;applicable to weak acids with temperatures from-30℃ to 150℃ |
| Viton | Resistant to heat,oil,medicine and chemical reagents,acid and alkali with medium corrosive degrees;applicable to the corrosive medium from -20℃ to 180℃ |
| Silica Gel | Resistant to ozone,aging,acetic acid,ammonia and alcohol,alkali,etc from-50℃ to 210℃ |
| Chlorinated Rubber | Resistant to Freon,petroleum;applicable to inorganic acid,alkali,running from-30℃ to 130℃ |