Hana ʻia kēia huahana me nā plastics ABS flame-retardant kiʻekiʻe, loaʻa nā pono o ka maʻalahi ka hoʻokomoʻana, palekana a me ka hana, ka waiwai insulation maikaʻi, ka hopena o ka hopena a pēlā aku. ʻO ka hoʻolālā huahana, hoʻohana ka huahana i ke ʻano kiʻekiʻe kiʻekiʻe maʻalahi o ka puna wai hinge, e like me ka huli ʻana i ka pilina ma waena o ka panel kuanaʻike a me ka panel nui holoʻokoʻa, ʻo ia hoʻonui i ka ikaika panel kuanaʻike a me ka ikaika panel nui, hiki koke wehe i ka panel kuanaʻike; ʻoiai he mea maʻalahi loa ka wehe a pani ʻana i ka panel ma muli o kāna hoʻolālā akamai, hiki i ka pūnāwai ke hoʻokuʻi i ka panel ma ke kaomi māmā ʻana i ke pihi. ʻO loko piha ka pili honua a me ka pili pili ole, ka convergence copper bar hiki no hoi hoʻohana ʻia no ka uwea, maʻalahi e hoʻohana.