| 摘要 |
A piston for use in an engine. The piston includes a piston head having at least one ring groove. The piston also includes a piston skirt coated with a first thickness of a bronze coating material, and a side panel adjacent the piston skirt that is coated with a second thickness of the bronze coating material. The first and second thicknesses of the bronze coating material are different. In some embodiments, the bronze coating material also includes aluminum.
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