Teflon flange protective cover, acid and alkali resistant protective cover, flange protective cover: commonly used indoors, temperature range - 15 ~70 ~C, high chemical corrosion resistance (resistant to concentrated hydrochloric acid, sulfuric acid concentration below 90%, nitric acid concentration below 68%), oxidant, reductant and strong acid, strong base have a strong resistance, not suitable for aromatic When aromatic hydrocarbons and chlorinated hydrocarbons come into contact with each other, the inner mesh fabric is strengthened, which has excellent tensile and tear resistance, and can withstand certain ultraviolet rays. Price economy, convenient installation, translucency