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D2011 F2L2011 BFM2011 Set of piston ring 04280565
The outer surface of the first gas ring 04280565 is treated with porous chrome plating, because the porous chrome layer has high hardness and can store a certain amount of lubricating oil, which can improve the lubricating conditions. The remaining gas rings are treated with tin plating or phosphating to improve their wear resistance, and molybdenum spray process can also be used to improve wear resistance. The 04280565 piston ring is a metal elastic ring with large outward expansion deformation, which is assembled into the annular groove corresponding to the cross section. Reciprocating and rotating piston rings rely on the pressure difference of gas or liquid to form a seal between the outer circular surface of the ring and the cylinder and one side of the ring and the ring groove.
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