1. Kho qhov ntsuas kub kom raug thiab sijhawm?
Qhov kub thiab txias ntawmtshav kub hloov: 180-230 degrees, lub sijhawm kwv yees li 10-30 vib nas this, ua ntej hloov mus rau lwm qhov, yuav tsum ntsuas me me txhawm rau txiav txim siab qhov kev hloov pauv zoo tshaj.
2.Qhov cua sov sab yuav tsum nyob ze thaum hloov cua sov?
Thaum nws nyob hauv kev hloov pauv,tshav kub niasnto, hloov paperand nto ntawm substrate yuav tsum nyob ze, tsis tuaj yeem muaj qhov khoob, txwv tsis pub nws yuav ua rau cov duab hloov pauv tsis meej.
Koj puas tau nws. Yog koj muaj lwm lo lus nug, txais tostiv tauj peb.