ʻO nā ʻano valve butterfly a me nā ʻano o ka hoʻohana ʻana, a me ka mālama ʻana i ke kūʻai ʻana, ka mālama ʻana, ka wehewehe kikoʻī.
ʻO nā ʻano valve Butterfly a me nā ʻano o ka hoʻohana ʻana, a me ka mālama ʻana i ke kūʻai ʻana, ka mālama ʻana, ka wehewehe kikoʻī ʻO ka valve butterfly he valve pipeline maʻamau, ʻo kona mau hiʻohiʻona nui he ʻano maʻalahi, maʻalahi e hana, hana hoʻopaʻa maikaʻi. Wahi a ka...
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