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Perfect Manufacturing2020-03-30 14:32:422020-03-30 14:32:42The commonly used material for valve body
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Perfect Manufacturing2020-03-25 08:56:172020-03-25 08:56:17Control valve seat leakage class
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Perfect Manufacturing2020-03-24 09:03:552020-03-24 09:03:55What caused the leakage of valve?