The metal compensator products use the current international microprocessors, integrated circuits and components produced by domestic and foreign manufacturers, and high-strength flame-retardant engineering plastic shells.It has the advantages of simple structure, high integration, high precision, high stability, anti-interference ability, beautiful appearance and small volume.Metal compensator material selection (1) High elastic limit, tensile strength and fatigue strength, so that the bellows can work normally.(2) Good plasticity, which is convenient for the processing and forming of bellows, and can obtain sufficient hardness and strength through subsequent treatment processes (cold hardening, heat treatment, etc.).(3) Good corrosion resistance, which meets the working requirements of bellows in different environments.(4) Good welding performance, meeting the welding process requirements of bellows in the production process.