| Type | Specificatio | A | B | C | D | Threat Connection |
| DV23 | 3'' | 194 | 146 | 233 | 124 | 3'' external threat ; 2 1/2'' internal threat |
| DV24 | 4'' | 194 | 146 | 233 | 124 | 4'' internal threat |
| Type | Specificatio | A | B | C | D | Threat Connection |
| DV23 | 3'' | 194 | 146 | 233 | 124 | 3'' external threat ; 2 1/2'' internal threat |
| DV24 | 4'' | 194 | 146 | 233 | 124 | 4'' internal threat |
撥打電話