7*24小時服務熱線：
131-1288-7696
| 規(guī)格 | 節(jié)線長 | 齒數 |
| T20×1220 | 1220.00 | 61 |
| T20×1240 | 1240.00 | 62 |
| T20×1260 | 1260.00 | 63 |
| T20×1280 | 1280.00 | 64 |
| T20×1320 | 1320.00 | 66 |
| T20×1460 | 1460.00 | 73 |
| T20×1680 | 1680.00 | 84 |
| T20×1700 | 1700.00 | 85 |
| T20×1760 | 1760.00 | 88 |
| T20×1780 | 1780.00 | 89 |
| T20×1880 | 1880.00 | 94 |
| T20×2200 | 2200.00 | 110 |
| T20×2240 | 2240.00 | 112 |
| T20×2600 | 2600.00 | 130 |
| T20×2720 | 2720.00 | 136 |
| T20×2760 | 2760.00 | 138 |
| T20×3100 | 3100.00 | 155 |
| T20×3620 | 3620.00 | 181 |
| T20×4760 | 4760.00 | 238 |
