| 规格 | 内径mm | 外径mm | 1/2" | 1" | 1-1/2" | | 14G | 1.64 | 2.10 | * | * | * | | 15G | 1.43 | 1.83 | * | * | * | | 16G | 1.25 | 1.65 | * | * | * | | 17G | 1.11 | 1.49 | * | * | * | | 18G | 0.92 | 1.28 | * | * | * | | 19G | 0.72 | 1.08 | * | * | * | | 20G | 0.61 | 0.91 | * | * | * | | 21G | 0.52 | 0.82 | * | * | * | | 22G | 0.42 | 0.72 | * | * | * | | 23G | 0.34 | 0.64 | * | * | * | | 24G | 0.31 | 0.57 | * | * | * | | 25G | 0.26 | 0.52 | * | * | * | | 26G | 0.25 | 0.46 | * | * | * | | 27G | 0.21 | 0.42 | * | * | * | | 28G | 0.18 | 0.36 | * | * | * | | 30G | 0.14 | 0.32 | * | * | * |
|