3 Air cooler and oil cooler shall be made of red copper, albata seamless tube or other corrosion prevention tubing.
3空气冷却
和油冷却

用紫铜、铜镍合金的无
管或其他防锈蚀的管
。
3 Air cooler and oil cooler shall be made of red copper, albata seamless tube or other corrosion prevention tubing.
3空气冷却
和油冷却

用紫铜、铜镍合金的无
管或其他防锈蚀的管
。

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