7 Filtration elements as machine parts, namely, filtration elements for use in the food-processing industry, beverage industry, bio-pharmaceutical industry, bio-technology industry, pharmaceutical industry, environmental industry, paper industry, textile industry, printing industry, metallurgy industry, nuclear industry, marine industry and the chemical and petrochemical industries ; machines; filtering membranes as parts of machines; Inorganic filtering elements as machine parts, namely, inorganic filters for use in the food-processing industry, beverage industry, bio-pharmaceutical industry, bio-technology industry, pharmaceutical industry, environmental industry, paper industry, textile industry, printing industry, metallurgy industry, nuclear industry, marine industry and the chemical and petrochemical industries; ceramic filters as machine parts, namely, ceramic liquid and gas filters for use in the food-processing industry, beverage industry, bio-pharmaceutical industry, bio-technology industry, pharmaceutical industry, environmental industry, paper industry, textile industry, printing industry, metallurgy industry, nuclear industry, marine industry and the chemical and petrochemical industries; Machine parts, namely, filtering elements which are enclosed within casings and are positioned side-by-side with gaskets, namely, ceramic liquid and gas filters for use in the food-processing industry, beverage industry, bio-pharmaceutical industry, bio-technology industry, pharmaceutical industry, environmental industry, paper industry, textile industry, printing industry, metallurgy industry, nuclear industry, marine industry and the chemical and petrochemical industries