service-free life的意思|示意

One year free warranty, life-long service.

一年免费保修，终生服务。

High precision dynamic balancing machine has the characteristics of low noise, high efficiency, long service life, and fully enclosed in high performance grease, life-long maintenance free.

高精度动平衡机具有噪音低、高效率、使用寿命长等特点，且全封闭内加高性能润滑脂，终生免维护。

Sales of products once sold, will be returned within one week of service free, free replacement parts to achieve life-long service.

销售产品一经售出，将在一周内免费退换的服务，配件做到终生免费更换服务。