Dutsen ulun sanwici samfuri ne na ulun dutse wanda aka kera musamman don sassan sanwicin ƙarfe.Yana da abũbuwan amfãni na madaidaicin girman girman girman geometric, kyakkyawan ƙarfin fiber, ƙarfin matsawa mai ƙarfi, juriya mai ƙarfi da ƙarfi mai ƙarfi.Gabaɗaya, ana iya daidaita shi bisa ga buƙatun abokan ciniki.Dabarun sanwicin ulu na dutse suna da mafi girman juriya na wuta a cikin jerin sandunan sanwici.
1. Kyakkyawan juriya na wuta
2, Kyawawan rufin zafi
3.The sauti sha da zafi rufi sakamako ne na ƙwarai