With generator and 1 LED light; the bottom plate is made of hard solid wood finely polished, exquisite atmosphere; the bracket is made of zinc alloy casting, which is stable and strong; the flywheel, cylinder liner, and shifter piston are made of aluminum alloy precision turning, precision milling, and texture. A double collection of aesthetics; the connecting rod is made of stainless steel; the power cylinder and the hot cylinder are made of glass, which is transparent and intuitive; the overall model is exquisite, atmospheric and beautiful; the demonstration principle is intuitive and clear. The wheel and axle connections are all connected by high-precision miniature bearings. It is made of precision polished brass, stable without lubrication.
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