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Precisely cast ductile iron gear has advantages of low noise, high abrasion resistance index and long service life.
精密铸造球铁齿轮,噪音低,耐磨度高,使用寿命长。
youdao
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With direction index, sapphire cover lens, never abrasion.
带有方向标,蓝宝石镜头,永不磨损。
youdao
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With direction index, sapphire cover lens, never abrasion.
带有方向标,蓝宝石镜头,永不磨损。
youdao