The difference is that steel is an "iron-carbon alloy" with carbon content below 2%. This steel is called "carbon steel". Carbon steel is divided into low carbon steel, medium carbon steel and high carbon steel according to carbon content. Steel containing other alloying elements is called "alloy steel".

Stainless steel is a kind of alloy steel. A variety of metal alloy elements, such as Ci and Ni, were added. Common stainless steel is divided into "ferritic stainless steel" and "austenitic stainless steel".

Stainless steel luggage case is made of stainless steel and welded with solid plates, which has the characteristics of rust prevention, corrosion resistance and easy cleaning. Zhao Ting steel trolley is made of cold-rolled steel, and the sound of the trolley is made of electrostatic spraying technology, which also has the characteristics of rust prevention and corrosion resistance, but the load-bearing performance of the steel trolley is better. At present, stainless steel carts are not widely used, such as laboratory carts, medical carts, production line carts, etc., which are all made of stainless steel, while library carts, warehouse carts, office carts and other commonly used steel.

You can choose trolleys made of different materials according to different purposes.