1. ADT30A-CD4 four in one gas detector
2. TCP100 electric spark detector
3. BY-15Z automatic pour point and freezing point tester
4. BY-15A pour point and freezing point tester
5. BY-13Z automatic freezing point tester
6. BY-13A freezing point tester
7. BY-12Z automatic pour point tester
8. BY-12 pour point tester
9. BY-TP-2 Microcomputer rotating Ferrograph.
10. BY-L-4 automatic paraffin melting point tester TAG：