The role and benefits of steel pipes built into plastic pallets: 1. The function of plastic pallets with built-in steel tubes is to enhance the load-bearing capacity of plastic pallets. It is found through experiments that the carrying capacity of the same type of plastic pallets, plastic pallets with built-in steel tubes and plastic pallets without built-in steel tubes differ greatly: 1) The dynamic load capacity differs by more than 0.5 times. For example, the 1210 grid 3runner plastic pallet, when there is no built-in steel pipe, the dynamic load can only be 1 ton, and the built-in steel pipe can achieve a dynamic load capacity of more than 1.5 tons. 2) The difference between the loading shelves is more than 0.6 times. For example, the 1210 grid 3runner plastic pallets, without built-in steel pipes, the upper shelves can only be 0.5 tons, and the built-in steel pipes can reach 1.2 tons. 2. The benefits of the built-in steel pipe for the plastic pallet: 1) The shape, appearance and structure of the plastic pallet are not changed. 2) The cost is cheap, The method to increase the load capacity of the plastic pallet with a small cost is to build a steel tube into the plastic pallet. The function and advantage of the steel tube to the plastic pallet is to instantly increase the load capacity of the plastic pallet with a minimum cost.