1. Double glass steel on each side of the cart body, with the features of high strength, light weight, corrosion resistance, fire resistance and fire resistance; 2. The cart body material is double deck steel plate, with the characteristics of anti-radiation (radiation is relatively small), good heat dissipation, fire resistance, recyclable and bright; 3. The cart floor is aluminum plate, anti-rust paint, anti rust and anti-slip; 4. The internal working platform of the cart are all made of stainless steel, reject the inferior material and reduce the harm to the body.