ʻO ke ʻano valve mea kanu kemika a me kahi hoʻohana (me ke ʻano efficacy)
Kemi mea kanu valve 'ano a me ka noi wahi (me ka 'ano efficacy) Ma hope o ka hana 'ana o ka mahu engines, i ka hala he iwakālua a kanakolu makahiki, no ka pono o ka aila, kemika mea kanu, mana mea kanu, metallurgical oihana, moku, nukelea mana ge. ..
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