Ship sailing tests show the propellers made of this alloy have much lover noise than copper alloy propellers.

实船试验表明，该合金螺旋桨比铜合金螺旋桨噪声有较大幅度降低。

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Ship sailing tests show the propellers made of this alloy have much lover noise than copper alloy propellers.

实船试验表明，该合金螺旋桨比铜合金螺旋桨噪声有较大幅度降低。

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