Mainly used to simulate harsh high temperature, low temperature, or humid and hot environments that may be encountered during transportation, storage, and use of electronic instruments, new materials, electricians, vehicles, metals, electronic products, aerospace materials, etc; Under the alternating environment of high temperature, low temperature, and humid heat, the resistance of materials, accessories, instruments, and equipment to high temperature, cold, and humid heat, as well as the potential reduction in damage life, shall be inspected
