Step one:
First draw a semicircle and connect it with arcs below.
The second step:
Then draw two downward curved arcs to connect them.
The third step:
Draw two more diagonal lines below and connect them with arcs.
Step 4:
Inside, draw a little expression.
Step 5:
Beside it, use the same method to draw another ingot.
Step 6:
Finally, apply a nice color and the ingot is finished.