Ceramic ferrules MD Type D0 D1 D2 H A UF6 6.2 11.5 9.5 8.7 4.7 UF8 8.2 15 11 8.7 4.7 UF10 10.2 17.8 15 10 5.2 UF12 12.2 20 16.5 10.7 6