The rubber seal ring is fixed on the valve plate through mechanical means, is firm and convenient for field adjustment or replacing the seal ring.
橡胶密封圈用机械方式固定在阀板上，结构牢固，便于现场调整或更换密封圈。
The rubber seal ring is fixed on the valve plate through mechanical means, is firm and convenient for field adjustment or replacing the seal ring.
橡胶密封圈用机械方式固定在阀板上，结构牢固，便于现场调整或更换密封圈。
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