This product is designed and manufactured according to user requirements, and is suitable for high and low temperature impact tests of complete machines and parts of aviation, aerospace, military, ships, automobiles (including motorcycles), batteries, electronics and other products, and storage in high or low temperature environments And experiment. It is for users to make corresponding climate and environment accelerated tests on the whole machine (or components), electrical appliances, instruments, materials, coatings, plating, etc., so as to evaluate the test product or the test behavior of the test product.