Some people who are particular about things even use blue bricks for their kang beds. It's unnecessary, red bricks work just fine. The old man thinks they are even warmer than blue bricks.,Old Two: "Elder, I can't come here for nothing. You order me some first, alright Let's order some for both our families. When I get back, I'll ask around. We have a few hundred households there. Even if we don't use it for building houses, we all need kang beds. You see, the more we order, the cheaper it can be, right","Then I'll order 20,000 blue bricks and 20,000 red bricks. Uncle, give me a discount."。