品牌：NTH
| 型号 Model | L1 | L2 | L3 | L4 | D1 | D2 | B1 | Threads/inch |
|---|---|---|---|---|---|---|---|---|
| IC-150(6") | 51.5 | 21 | 10 | 20 | 22 | 11 | 8 | 6/inch |
| IC-200(8") | 70 | 41 | 14 | 15 | 26 | 14 | 10 | 5/inch |
| IC-250(10") | 91.5 | 57 | 14 | 19.5 | 26 | 14 | 10 | 5/inch |
| IC-300(12") | 111 | 73 | 16 | 22 | 30 | 16 | 12 | 4/inch |
| IC-350(14") | 130 | 85.5 | 16 | 28.5 | 30 | 16 | 12 | 4/inch |
| IC-400(16") | 149 | 108.5 | 18 | 22.5 | 34 | 18 | 14 | 4/inch |
| IC-450(18") | 169 | 123.5 | 18 | 27.5 | 34 | 18 | 14 | 4/inch |
| IC-500(20") | 189 | 137 | 20 | 32 | 35 | 19 | 14 | 3.5/inch |
| IC-600(24") | 233 | 162 | 20 | 51 | 38 | 20 | 14 | 3.5/inch |
| IC-700(28") | 299 | 193 | 18 | 68 | 38 | 22 | 14 | 4/inch |
| IC-800(32") | 330 | 216 | 24 | 90 | 44 | 28 | 19 | 6.0mm |
