... water valve packing nut 水阀填密螺母 valve packing gland 阀填料压盖 valve packing retainer 气门密封座圈 ...
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steam valve packing gland 汽阀填密压盖
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The packing gland not skewed, leakage accords with a requirement, inlet valve open since pressure grouting pump, emptying.
盘车轻快自如无卡涩; 填料压盖不偏斜,渗漏符合要求,入口阀打开自压灌泵、排空。
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