He hui kūikawā ʻo Yihe enterprise i ka hoʻolālā ʻana a me ka hana ʻana i nā kui, nā kui kuʻekuʻe, nā kui ʻōwili, nā ʻano kui kūikawā a me nā wili.Nails koho mea o ka maikaʻi kalapona kila, keleawe, aluminika a me kuhiliʻole kila, a hiki ke hana galvanized, wela wela,ʻeleʻele, keleawe a me ka 'ē aʻe ili lapaʻau e like me ka mea kūʻai mai koi.ʻO ka wili nui no ka hana ʻana i nā wili amchine i hana ʻia e US ANSI, BS machine screw, bolt corrugated, indlcuidng 2BA, 3BA, 4BA;ʻO nā wili mīkini hana Kelemānia DIN (DIN84 / DIN963 / DIN7985 / DIN966 / DIN964 / DIN967);ʻO GB Series a me nā ʻano huahana maʻamau a me nā mea maʻamau ʻole e like me nā wili mīkini a me nā ʻano mīkini keleawe a pau.