JAPAN
It is a complete set ( 4 sets of rings for 4 pistons) they are made by NPR Japan not a chinese copy for the European market. This is the best set of rings available. This is the best alternative to the German unit which is 3 times the cost. Excellent quality, again this is top notch compared to the Chinese units that are out there.
engines get plenty of attention in the drive to increased efficiency, there is still plenty of room for improvement in more traditional engine architectures. Reducing internal friction is a prime target for improvement that is being tackled in several ways, including coats, surface finishes and lubricants.
Parts supplier Federal-Mogul has just announced a new type of piston ring that it claims will cut sliding friction of the piston assembly by 15 percent and slash oil consumption in half. The pistons themselves are generally not supposed slide along the cylinder walls directly. That is the job of the piston rings which provide the seal to keep oil out of the combustion chamber and the air/fuel/exhaust in. Federal-Mogul's new LKZ oil control ring is a one-piece design with a special contoured assymetric profile. Typical rings provide similar pressure as the piston goes up and down. The new stepped design provides less resistance when the piston is heading upward for reduced pumping losses. When the piston is heading downward, the pressure increases to help scrape the oil off the cylinder wall while also sealing the combustion gases in!!
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GERMANY
Proven Technology for Aftermarket Applications
Federal-Mogul's leading Sealed Power® brand piston rings offer proven technology and sealing performance that have made them a dominant choice as replacement parts in aftermarket applications. Every Sealed Power ring set is engineered for optimal horsepower, oil control and durability and delivers the ideal ring technology for all applications.
Moly and Chrome
Our molybdenum (moly) and chrome ring sets combine the latest metallurgy with state-of-the-art engineering to
produce premium compression rings.
http://www.federalmogul.com/en/AftermarketSolutions/SouthAmerica/EngineSolutions/Products/PistonRings/SealedPowerPistonRings/
Materials and Designs That Meet Customer Demands
The Federal-Mogul Sealed Power® brand of engine bearings offers advanced technologies that ensure performance and durability within virtually any automotive or light-duty truck engine.
The Sealed Power brand combines advanced materials and patented designs to meet the demands of specific applications for rebuilt engines. Sealed Power bearings have application-specific lining materials and are precision fit for endurance.
Sealed Power A-Series bearings are the latest in bearing technology from Federal-Mogul, the world leader in engine bearings. These revolutionary bearings, manufactured using aluminum tin alloy with silicon
ALL OF THEM IN CAIRO EGYPT
IN
MAGDY RAMZY STORE
ZAKIE STREET EL TAWFEKIA AREA!!
see this video
http://www.engineering.com/Videos/VideoPlayer/tabid/4627/VideoId/505/Using-A-Piston-Ring-Compressor.aspx