He kuleana koʻikoʻi nā kānana aila hydraulic i ka mālama ʻana i ka maikaʻi a me ka pono o nā ʻōnaehana hydraulic.ʻO lākou ke kuleana no ka wehe ʻana i nā mea haumia, e like me ka lepo, nā ʻōpala, a me nā ʻāpana metala, mai ka wai hydraulic ma mua o ka holo ʻana i ka ʻōnaehana.Inā ʻo ka o...
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