Ofc porcelain crucible is a high efficiency material and It can be used as a test piece, retort, but the most common use is as a smelting vessel which is used in furnaces or fire with direct flame.
I thinlk it's by radiation?......
<u>HI :)</u>
True
<em>Hope</em><em> this</em><em> helps</em><em> </em><em>:</em><em>)</em>
Answer:
1a 2b 3c 4d 5c 6c that is the answer to your quesrion i believe
