1. BY-22 wide temperature range grease dropping point tester
2. BY-21 grease dropping point tester
3. BY-JD-286 automatic dielectric strength tester
4. BY-TD-260 automatic volume resistivity tester for electric power oil
5. BY-ZL-200 interface tension automatic tester
6. BY-JD-100 insulating oil dielectric loss and resistivity automatic tester
7. BY-201 engine oil apparent viscosity tester (CCS method)
8. BY-170（A）low temperature viscosity tester for automotive fluid lubricants
9. BY-104 hydraulic oil filter testerBY-102 refrigerator oil and refrigerant solubility tester
10. BY-101 refrigerator oil stability tester under the action of refrigerant
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