成品电线的绝缘或护套表面应有生产厂名、型号和电压的连续标志。
Finished power line should have products name, model and voltage signs.
使用时注意接头质量、托辊转动应灵活、表面安上护套，采用在各滚动轮上安装衬垫等措施有效地提高钢丝绳的使用寿命。
Some measures as fittings quality, cradle roll's flexibility, and installing cleading in face, installing mat in every rolling wheel and etc. can increase wire rope's service life.
建议：泵轴或防护套的表面硬度要达到60hrc。
Suggestion: pump shaft or protective set of surface hardness to achieve 60hrc.
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