ʻO ka valve butterfly hōʻailona ahi e pili ana i nā pipeline o ka petroleum, kemika, ka meaʻai, ka lāʻau lapaʻau, ka hana pepa, hydropower, ka hoʻouna ʻana, ka wai a me ka hoʻoheheʻe ʻana, ka hoʻoheheʻe ʻana, ka ikehu a me nā ʻōnaehana ʻē aʻe. Hiki ke hoʻohana ʻia e like me ka hoʻoponopono ʻana a me ka throttling lako ma nā ʻano kinoea corrosive a me nā mea ʻole ...
Heluhelu hou aku