The old man glanced at him a few times, then looked at Qi Si and said, "My eldest son has gone to serve his duty, so now it's just me and my youngest son working. Li Ma will tell you that I'm slow at making bricks. How many do you need",The blue bricks are solid and frost-resistant, exposed directly to the outside. They withstand strong winds and rain without issue.,Grandma's hand seems to be a bit unsteady. The stick in her hand is very short.。