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.
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.
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.
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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