Seller notes

The 11 1/2X13 A3R PROP is a Polastorm high-quality aluminum three-bladed propeller. It is in high expectancy to be of exceptional strength since aerospace casting technology has been applied to marine aluminum propellers, resulting in hybrid castings of strontium, aluminum, and titanium that are significantly stronger and more durable than ever before. It has a tensile strength of 280MPA and a yield strength of 220MPA, which is much higher than the conventional die-casting and squeeze casting pr...

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