Alumina ceramics are widely used because of chemical corrosion resistance. Although alumina ceramics can resist many strong acids and organic acids. be corroded easily by HF due to silicon components in raw materials. This work aimed to reveal the effect of La2O3 on HF/HCl resistance of the alumina ceramic containing SiO2. https://poolsproductscanadas.shop/product-category/commercial-product-flow-ctrl-valves/