FACOM 20系列开口头
FACOM 开口头 产品参数
| 件号 | A（mm） | B（mm） | C（mm） | L（mm） | 重量（g） |
| 20.10 | 10 | 24 | 6,0 | 105 | 60 |
| 20.11 | 11 | 24 | 6,0 | 105 | 60 |
| 20.12 | 12 | 29 | 6,0 | 106 | 60 |
| 20.13 | 13 | 29 | 6,0 | 106 | 60 |
| 20.14 | 14 | 29 | 6,0 | 106 | 65 |
| 20.15 | 15 | 40 | 7,5 | 109 | 105 |
| 20.16 | 16 | 40 | 7,5 | 109 | 105 |
| 20.17 | 17 | 40 | 7,5 | 109 | 105 |
| 20.18 | 18 | 40 | 7,5 | 109 | 100 |
| 20.19 | 19 | 40 | 7,5 | 109 | 100 |
| 20.21 | 21 | 53 | 8,0 | 112 | 145 |
| 20.22 | 22 | 53 | 8,0 | 112 | 145 |
| 20.23 | 23 | 53 | 8,0 | 112 | 145 |
| 20.24 | 24 | 53 | 8,0 | 112 | 140 |
| 20.26 | 26 | 53 | 8,0 | 112 | 130 |
| 20.27 | 27 | 66 | 9,0 | 115 | 185 |
| 20.28 | 28 | 66 | 9,0 | 115 | 185 |
| 20.29 | 29 | 66 | 9,0 | 115 | 185 |
| 20.30 | 30 | 66 | 9,0 | 115 | 185 |
| 20.32 | 32 | 66 | 9,0 | 115 | 180 |
| 20.35 | 35 | 74 | 10,0 | 118 | 220 |
| 20.36 | 36 | 74 | 10,0 | 118 | 220 |
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