更多参数如配配套法兰板、导轨尺寸可点击对应型号查看：
4.454 | 4.455 | 4.456 | 4.458 | 4.460 | 4.461 | 4.462 | 4.463 | PR4.454 | PR4.455 | PR4.456 | PR4.458 | PR4.460 | PR4.461 | PR4.462 | PR4.463 |
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