kaulahao

ʻO ka wehewehe pōkole:

He ʻāpana convex mau me ke ʻano kikoʻī i hana ʻia ma luna o ka ʻili o ka matrix cylindrical a conical paha.Hoʻokaʻawale ʻia nā kaula i loko o nā milo cylindrical a me nā kaula conical e like me ko lākou ʻano makua;Hiki ke hoʻokaʻawale ʻia i loko o ka milo waho a me ka milo i loko e like me kona kūlana i ke kino makua, a hiki ke hoʻokaʻawale ʻia i loko o ka triangular thread, rectangular thread, trapezoidal thread, serrated thread a me nā ʻano kikoʻī kūikawā ʻē aʻe e like me kona ʻano ʻāpana (niho kino).