更多参数如配配套法兰板、导轨尺寸可点击对应型查看：
4.072 | 4.073 | 4.074 | 4.075 | 4.076 | 4.077 | 4.078 | 4.0784 | 4.079 | 4.08 | PR4.072 | PR4.073 | PR4.074 | PR4.076 | PR4.0784 | PR4.079 | PR4.080
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