China Dental, Dental Manufacturers, Suppliers,
2021-3-10 · 4. Steward (TR, TA & TN) leading to the rating Steward (SD) discontinued in 1975. 5. Dental (DR, DA & DN) leading to the rating Dental Technician (DT) discontinued in 2005. 6. Petty officer ratings shown are BM3, BM2, BM1, QMC, QMCS, QMCM 7. One Master Chief Petty Officer is selected as the Master Chief Petty Officer of the Navy …
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