ʻO ke kiwipepa hope loa
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ʻO ka pahu pelelele hope loa
Heluhelu hou akuʻO ka valve butterfly end grooved he valve butterfly hoʻopaʻa paʻa paʻa me nā hiʻohiʻona kahe.Hoʻoheheʻe ʻia ke sila ʻōpala ma luna o ka disc ductile hao, i mea e hiki ai ke kahe nui loa.