Txhawm rau xaiv txoj cai pom hniav, xav txog cov hauv qab no:
1. Cov khoom siv yuav tsum txiav: Cov khoom sib txawv yuav tsum tau sib txawv ntawm cov hniav sib txawv. Piv txwv li, cov hlau yuav tsum muaj cov hniav sib zog, thaum ntoo yuav tsum muaj hniav nrog sterrations.
2. Hniav loj: cov hniav loj yuav tsum sib haum nrog koj lub tshuab sawing lossis tes pom. Xaiv ib tus hniav uas loj dhau los yog me me me me yuav ua rau txiav kev txiav txom nyem tsis zoo lossis puas cov saw tshuab.
3. Hniav cov duab: cov hniav txhuam hniav yog nyob ntawm cov khoom siv tau txiav thiab cov cai. Piv txwv li, ntoo yuav tsum tau ib tug hniav nrog serrations, thaum hlau yuav tsum tau hniav nrog cov khoom siv.
4. Tus naj npawb ntawm cov hniav: tus naj npawb siab dua ntawm cov hniav pom kev txiav cov khoom zoo, tab sis kuj tau txo cov hniav lub neej.
5. Hniav khoom: Cov khoom hniav cuam tshuam cuam tshuam rau lub neej thiab txiav kev ua haujlwm ntawm lub ntsej muag hniav pom. Feem ntau, siab - ceev steel pom cov hlau tsis muaj zog, thaum carbide pom cov hniav tsis muaj zog yog tsim nyog rau kev txiav cov hlau.
