... mechanical seal , static rings, or use of 99.9% Alumina silicon carbide, ring using Teflon fill material ... in chemical, pharmaceutical, petroleum, metallurgy, electricity, electroplating, acid, pesticide, paper and other industries in liquid transport, ... can deliver to any concentration of sulfuric acid, hydrochloric acid, nitric acid, acetic acid, hydrofluoric acid, aqua regia, alkali, strong oxidizer ...