Hoʻohana nui ʻia nā pulupulu kalapona, i kapa ʻia ʻo nā pulupulu uila, i nā mea uila he nui e like me ka hoʻopili ʻana. ʻO nā mea nui i hoʻohana ʻia no nā pulu kalapona i nā huahana he graphite, graphite greased, a me ka metala (me ke keleawe, ke kālā) graphite.
Heluhelu hou akuʻO ka pepa insulating DMD he nui nā hiʻohiʻona maikaʻi loa a loaʻa nā ʻano hoʻohana like ʻole i nā ʻoihana like ʻole, akā hiki ʻole ke hōʻino ʻia i ka wā o ka noi, no ka mea he nui nā kumu i maʻalahi i ka nānā ʻana i ke kaʻina noi, a ʻo ka hoʻohana lōʻihi e kumu i kāna mau waiwai like ʻole. a nalowa......
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