Yog vim li cas yuav tsum pre-masonry yuav tsum tau nqa tawm ua ntej lub refractory cib kev tsim kho ntawm cov pa roj carbon ci rauv?

(1) Tshawb xyuas seb tus qauv tsim puas yog.

(2) Xyuas seb hom cib puas yog lawm.

(3) Xyuas seb qhov kev ua tau zoo ntawm cov cement ua tau raws li kev tsim kho.

(4) Tshawb xyuas qhov kam rau ntawm cov cib refractory thiab lawv cov kev cuam tshuam ntawm masonry.

(5) Txiav txim siab daim ntawv masonry ntawm masonry.

(6) Nkag siab cov ntsiab lus tseem ceeb ntawm masonry thiab paub cov ntsiab lus tseem ceeb ntawm masonry.