Make the bevel gears of the industrial sewingmachine with damping alloy instead of steel to test noise.
应用阻尼合制作工业平缝机伞齿轮代替钢质齿轮。
Make the bevel gears of the industrial sewingmachine with damping alloy instead of steel to test noise.
应用阻尼合制作工业平缝机伞齿轮代替钢质齿轮。
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