Nov yog yuav ua li cas hloov cov hniav ntawm rab riam siv hluav taws xob:
1. Tig rab riam hlais. Siv koj tus ntiv tes xoo los nias tiv thaiv lub nraub qaum, ces ntswj nws sab laug thiab sab xis ob peb zaug kom txog thaum lub hau tawm. Tom qab ntawd txav lub slider thiab rub nws rov qab kom tshem tawm ob lub slider thiab cov hniav.
2. Lub slider thiab hniav yog cais. Tshem cov hniav qub, xov lub qhov ntawm cov hniav tshiab los ntawm qhov chaw ntawm lub slider, thiab nias rau hauv. Tom qab ntawd, hloov lub npog me me.
3. Cov riam siv hluav taws xob yog riam siv rau kev kos duab thiab khoom siv tes ua, feem ntau yog txiav cov khoom muag muag. Nws feem ntau muaj cov yas kov thiab cov hniav, thiab muaj qhov rub- tawm qauv. Cov riam siv hluav taws xob tuaj yeem muaj ntau qhov ntau thiab tsawg, los ntawm 20 cm mus txog 10 cm.
4. Thaum siv riam siv hluav taws xob ib txwm siv, feem ntau tsuas yog siv lub taub hau xwb. Txiav, carving, thiab kos npe yog nws lub luag haujlwm tseem ceeb. Txawm li cas los xij, cov hniav ntawm hom riam no yog nkig heev, thiab cov hniav tsis tuaj yeem ncua deb dhau thaum siv. Tsis tas li ntawd, qhov hardness thiab durability ntawm cov hniav (cov no yog ob lub ntsiab lus sib txawv hauv cov riam siv hluav taws xob) kuj txawv nyob ntawm cov khoom ntawm cov hniav.
