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Pipes and tubes of metal, namely, steel pipes, steel tubes, pressure pipe lines of metal, pipe joints of metal; goods of common metal not included in other classes, namely, metal containers for liquefied gases and liquid air, flanges of metal, steel balls, semi-finished products and metallic parts manufactured in the process of centrifugal casting, namely, metal rings, metal nuts, metal linkages, namely, high-alloyed stainless steels with low-alloyed steels, metal pipes, metal cones for decanters and separators and steel balls in an unprocessed or pre-fabricated condition or processed according to drawing

Treatment of materials, namely, heat-treatment of metals, processing of metals, namely, metal plating, metal casting, metal plating and welding, founding of metals

Scientific and technological services in the fields of material engineering; industrial analysis and research services in the field of material examination, material quality testing, substance and material testing and development, technical counseling regarding the selection of materials