Ua hoʻolaʻa ʻia kā mākou mau hale hana i ka hana ʻana i nā insulators porcelain no ka manawa lōʻihi, ʻoi aku hoʻi no East China Export, ua loaʻa iā ia he 20 mau makahiki o ka hana ʻana i ka porcelain insulator.ʻO kā mākou hana hana mahina ma kahi o 3,000 tons.ʻO kā mākou huahana, hana nui a ma lalo o 220kv voltage, e like me ka laina laina porcelain insulator, porcelain mea uila, porcelain hale mana, porcelain long rod porcelain a pēlā aku.Aia nā huahana ma mua o 20 mau ʻano, ʻoi aku ma mua o 200 mau ʻano.Ma waho aʻe, ʻae mākou i ka hoʻolālā mea kūʻai aku.
