Pressure test nzira yeplug valve
① Munguva yekuyedzwa kwesimba revhavhavhavhavha, yepakati inounzwa kubva kune imwe magumo, mamwe mavharuvha akavharwa, uye plug inotenderedzwa kune yega yega yakazaruka yekushanda chinzvimbo chekuyedza, uye muviri wevharuvhu unokodzera kana pasina kubuda. inowanikwa. ② ...
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