Installed on a by-pass line, mainline pressure is accurately controlled by relief of excess pressure.
安装一条旁路管线，通过释放过大的压力实现主管线压力的精确控制。
Upper step wedge and lower pass-line adjustment unit serve to compensate wear of WR diameter and BUR diameter.
上阶梯垫装置和下轧制线调整装置是补偿工作辊和支撑辊直径磨损减小的装置。
Upper step wedge and lower pass-line adjustment unit serve to compensate wear of WR diameter and BUR diameter.
上阶梯垫装置和下轧制线调整装置是补偿工作辊和支撑辊直径磨损减小的装置。
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