ʻO nā pōleʻa Ball ink
ʻO ka pale hao haoʻo Ductic i kahiʻano kiʻekiʻe o ka mīkini nui i hoʻomohalaʻia i ka makahiki 1950. Ua kokoke kāna hana hoʻopihapiha i ke kila. Ua kauʻia ia ma luna o kāna hana maikaʻi loa, ua hana maikaʻi ia no ka hoʻoleiʻana i kekahi mau wahi me ka ikaika paʻakikī, paʻakikī a me ka paleʻana a me nā pale. Ua ulu pinepineʻia ka hao duticle i loko o kahi ākea ākea i hoʻohanaʻia ma ka lua o ka hao hao wale nō i ka hao hao waleʻia. ʻO ka mea i kapaʻiaʻo iaʻo "kila ma mua o ka kila", e pili ana i ka mea hao ductile. ʻO ka pahu kūlokoʻo Ductile he kope lapaʻau ma o ka scherulation a me ka hana hoʻomaʻamaʻa maikaʻi, e hoʻomaikaʻi i ka waiwai o ke aniani,ʻoi aku ka maikaʻi o ke kinipa.
