This kind of valve's working pressure is not bigger than 0.7 megabar generally, the nominal size is not bigger than 300 millimeters.
这种阀的工作力一般大于0.7兆帕,公称通径大于300毫米。
This kind of valve's working pressure is not bigger than 0.7 megabar generally, the nominal size is not bigger than 300 millimeters.
这种阀的工作力一般大于0.7兆帕,公称通径大于300毫米。
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