Lus cim ntawm kev siv Khoom Siv Roj
1. Cov roj khoom sib sau ua kom siab yuav tsum 80-100 kg / cm2. Lub siab me dhau rau kev cog lus, tiv thaiv kev hlawv, thiab haus cawv yog qhov tsis taus.
2. Tom qab nias rau hauv qhov thaiv, yuav tsum tau muab cov quav ntawv qhwv kom nrawm nrawm kom tiv thaiv kom tsis txhob muaj cawv los ntawm tsis txaus. Feem ntau, kev ua ntawm nias thiab qhwv yog ua tiav ib leeg.
3. 20-gram ntawm cov khoom siv roj yog ib nrab puag ncig, 4-5 cm inch, thiab muaj 6 qhov me me nrog txoj kab uas hla 0.5 cm hauv nruab nrab (1 nyob hauv nruab nrab thiab 5 hauv ib puag ncig).
4. Ntxiv nrog rau cov tshuaj yoov tshaj cum-tshuaj tsw qab, nws yog qhov zoo tshaj plaws los ua ib daim duab peb sab kom txhawb nqa cov khoom ua kom sov lossis ua kom sov ua npuas dej.