适用于直通法兰式阀门的密封压力和阀体强度压力性能试验。

Is suitable for through flange valve sealing pressure and valve body intensity pressure performance test.

youdao

适用于直通法兰式阀门的密封压力和阀体强度压力性能试验。

Is suitable for through flange valve sealing pressure and valve body intensity pressure performance test.

youdao