所有已售货品均不设退换服务。

There is no exchange or refund for the products once they are sold.

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考虑到运费成本高，对海外客户暂时不提供退换服务。

Considering the expensive cost of freight, no refund or exchange support for international customers currently.

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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。

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

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