We chose to use 196A resin to make the FRP carriage, which is strong proof. In contrast, the reason we did not choose 196C resin is because of the many advantages of a carriage made of 196A resin. First, it is not prone to slight deformation, ensuring the stability of the carriage. Second, the carriage made of 196A resin has a longer service life and can stand the test of time. Additionally, 196A resin is moisture and static-resistant, making it an excellent insulating material.