... 1 .0 mmFilters, filter: 304A suitable material:weak corrosive materials in a chemical, petrochemical production, such as: water, ammonia ... acetate acid and so on;c, cooling in the low-temperature materials, such as: liquid methane, ammonia, liquid oxygen and ... of refrigerant;d, light food, pharmaceutical production, health requirements of materials, such as: beer, beverages, dairy products, grain, pulp ...