Alumina ceramic sheet has excellent anti-corrosion performance to different corrosive media, resistance to acid, alkali, salt and other strong corrosive media and halide salt corrosion characteristics, α-type aluminum oxide ceramic sheet, acid resistance 97-99%. Aluminum is a neutral oxide, and it does not react chemically with acids, alkalis and salts. Aluminum oxide is an inorganic substance. Under the long-term action of light, heat, oxygen and other natural environments, there is no performance degradation (ie aging) . It is determined that the corrosion resistance of wear-resistant pipes is ten times higher than that of stainless steel.