ADVANCED TEXTURING HYDRODYNAMIC FACE ATHF

[ Iron and steel; nonferrous metals and their alloys; metal junctions for pipes; ] segmented seals of metal for use in manufacturing seals; gas seals of metal for industrial or commercial use

Machine elements, not for land vehicles, namely, mechanical seals for manufacturing and machinery; mechanical seals

[ Measuring or testing machines and instruments, namely, instruments for sealing in the nature of sealing testing machines, friction abrasion instruments in the nature of friction abrasion testing machines, and rotary instruments in the nature of rotary converters; observation instruments, namely, artificial satellites and rockets for launching artificial satellites ]

[ Drying apparatus for chemical processing; recuperators for chemical processing; steamers for chemical processing; distillers for chemical processing; heat exchangers for chemical processing; industrial furnaces; nuclear reactors in the nature of atomic piles; boilers, other than parts of prime movers and engines, namely, boilers for heating installations, electric boilers, heating boilers, furnace boilers, and industrial boilers; air-conditioning apparatus for industrial purposes; water purifying apparatus ]

[ Mechanical elements for land vehicles, namely, engine parts in the nature of engines for land vehicles; vessels and their structural parts and fittings; aircraft and their structural parts and fittings; railway rolling stock and their structural parts and fittings; automobiles and their structural parts and fittings; two-wheeled motor vehicles, bicycles, and their structural parts and fittings ]

Mechanical seals, not of metal, for industrial or commercial use; gas seals, not of metal, for industrial or commercial use; [ O-rings in the nature of pipe gaskets, not of metal; ] segmented seals, not of metal, for industrial or commercial use; [ ceramic fibers for industrial or commercial use; plastic semi-worked products, namely, semi-processed resin materials for sealing; rubber, raw or semi-worked ]