1)First, prepares all the necessary equipment and material
<span>2Creating the pattern that desired for the shell</span>
<span>3)Creates the core of the shell by pouring the hollow spaces with meta</span>
<span>4)Creates molds for the shell by filling the corebox with sands and let them combined over time</span>
<span>5)Shake out the sand after the combination already cooled down</span>
<span>6) cast results are finished.</span>
blood rich in oxygen enters the lungs through the pulmonary artery in where the alveoli within the lungs exchange carbon dioxide and oxygen so the carbon dioxide leaves your body.
Hope this helps a bit
I don’t know the answer to this question
