文件的硬（60RC）高强度铝合金叶管提供了一个平滑，无腐蚀耐磨密封面。
The file hard (60RC) high strength aluminum alloy lobe tube provides a smooth, corrosion-free abrasion-resistant sealing surface.
机械密封采用硬质耐磨碳化钨，具有耐用、耐磨等特点，可以使泵安全连续运行8000小时以上。
Mechanical seal with tungsten carbide hard wear-resistant, with durable, wear-resistant characteristics, can pump more than 8000 hours of continuous operation safe.
文件的硬(60rc)高强度铝合金管提供了一个平稳无腐蚀密封面和良好的耐磨性。
The file hard (60rc) high strength aluminum alloy tube provides a smooth corrosion free sealing surface and excellent abrasion resistance.
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