Is mercury coated on the inside of the thermos? Why is the small protrusion at the bottom broken and cannot be kept warm? The secret of the heat preservation of the thermos is mainly the double-layer glass inner liner.

Plastic thermos have been used in many companies and enterprises. However, employees may not fully understand the plastic thermos. In this article, I will introduce the knowledge of plastic thermos to a certain extent. I hope that after reading this article, the information obtained is helpful to yo

Plastic thermos have been used in many companies and enterprises. However, employees may not fully understand the real plastic thermos. In this article, I will introduce the knowledge of plastic thermos to a certain extent. I hope that after reading this article, the information obtained is helpful

plastic thermos have been used in many companies and enterprises. However, employees may not fully understand the plastic thermos. In this article, I will introduce the knowledge of plastic thermos to a certain extent. I hope that after reading this article, the information obtained is helpful to yo

plastic thermos have been used in many companies and enterprises. However, employees may not fully understand the real plastic thermos. In this article, I will introduce the knowledge of plastic thermos to a certain extent. I hope that after reading this article, the information obtained is helpful