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The Helixsun SEMTO Engine ST-NF2 is a 7.0cc mini inline double-cylinder four-stroke air-cooled nitro internal combustion engine model kit. Designed for educational purposes and hobbyists, it features a high-speed capability of up to 16000rpm, a dual synchronous belt for enhanced performance, and a user-friendly carburetor for easy adjustments. This kit is perfect for mechanical enthusiasts and serves as an excellent teaching aid in physics classes.
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