1. OIL510A automatic infrared spectrophotometer
2. LB-OIL6 Infrared oil detector
3. AJ-97 fluorescence oil detector
4. STC-302 automatic liquid-liquid extractor
5. OIL4000B infrared oil detector
6. OIL4000BPLUS automatic infrared oil detector
7. JC-OIL-8 professional infrared spectrophotometer
8. DSY-237Z automatic lubricating oil evaporation loss tester
9. DSY-207ZW automatic vapor pressure tester
10. DSY-004Z automatic kinematic viscosity tester TAG：